Selenium (se) has 34 protons and 46 neutrons in each atom, therefore its atomic number is __________ and its mass number is __________.? (2023)

Table of Contents

What atom has 34 protons and 44 neutrons?

That element is selenium, Se. The atomic mass is the sum of protons (34) and neutrons (44). Thus, the atomic mass is 78.

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What element has 34 protons 45 neutrons and 36 electrons?

A selenium ion has 34 protons, 36 electrons, and 45 neutrons.

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(Melissa Maribel)
What is the atomic number mass number?

What is an atomic number and mass number? The number of protons and neutrons combines to give us the mass number of an atom. It is represented using the letter 'A. ' The atomic number of an atom is equal to the number of protons in the nucleus of an atom or the number of electrons in an electrically neutral atom.

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How do you find the mass number?

Together, the number of protons and the number of neutrons determine an element's mass number: mass number = protons + neutrons. If you want to calculate how many neutrons an atom has, you can simply subtract the number of protons, or atomic number, from the mass number.

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What has 34 protons 46 neutrons and 34 electrons?

Selenium

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What is the atomic number 44?

Ruthenium is a chemical element with symbol Ru and atomic number 44.

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What is the mass of an atom with 34 protons 34 electrons and 45 neutrons?

Atomic Structure

Selenium has 34 protons and 45 neutrons in its nucleus giving it an atomic number of 34 and a atomic mass of 79. Selenium is in Period 4 of the Periodic Table because it has 4 electron shells.

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What is the chemical symbol for an atom containing 34 protons 45 neutrons and 34 electrons?

Answer and Explanation: From the number of protons and neutrons, we can solve for the mass number of the element. The element is therefore Selenium (Se). The nuclide symbol is: 7934Se 34 79 S e .

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What is the overall charge of an atom containing 34 protons 36 electrons and 46 neutrons?

Explanation: While the number nuclear protons as given is 34, and therefore we deal with the element selenium, there are 2 more electrons than protons, and therefore this species has an overall 2− charge.

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How do you calculate atomic mass unit?

Thus, the total of the masses of neutrons and protons is the atomic mass.
  1. Atomic mass = Number of protons + number of neutrons + number of electrons. ...
  2. With this system, the masses of a proton and a neutron are nearly equal to 1 atomic mass unit, while the electron has a mass close to 0.0005 atomic mass unit.

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Is atomic mass number a whole number?

Solution : The total number of protons and neutrons in the nucleus of the atom is called the atomic mass number (A). The number of electrons or protons in an atom is called the atomic number (Z). Both protons and neutrons are whole numbers, therefore, atomic numbers and atomic mass numbers are always in whole numbers.

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What is atomic number short answer?

atomic number, the number of a chemical element in the periodic system, whereby the elements are arranged in order of increasing number of protons in the nucleus. Accordingly, the number of protons, which is always equal to the number of electrons in the neutral atom, is also the atomic number.

Selenium (se) has 34 protons and 46 neutrons in each atom, therefore its atomic number is __________ and its mass number is __________.? (2023)
What is the mass number quizlet?

Mass Number. Is the sum of the protons plus the number of neutrons in the nucleus. Neutrons add mass to an atom but do not change the atomic number. The mass of a proton is the same as a neutron. The number of Protons in an atom..

What is mass number Question Answer?

Mass number of an atom is the total number of protons and neutrons present in the nucleus of an atom of an element.

Why is it called a mass number?

Answer and Explanation: The mass number of an element is named as such because it gives the mass of the total number of protons and neutrons in an element. Along with the chemical symbols for each element most periodic tables list the atomic number and atomic mass of an element.

What is the mass number of selenium?

An element with the atomic symbol Se, atomic number 34, and atomic weight 78.97.

What is the mass number if element selenium has 34 protons and 45 neutrons?

Atomic Structure

Selenium has 34 protons and 45 neutrons in its nucleus giving it an atomic number of 34 and a atomic mass of 79.

What ion has 34 protons 46 neutrons and 36 electrons?

Z = 34, therefore the atom is selenium.

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What atom has a mass number of 44?

The elements of the periodic table sorted by atomic mass
Atomic MassName chemical elementnumber
98Technetium43
101.07Ruthenium44
102.9055Rhodium45
106.42Palladium46
110 more rows

What element has a mass of 44?

Ru Ruthenium

What has 34 protons and 46 neutrons?

Selenium (Se). Diagram of the nuclear composition and electron configuration of an atom of selenium-80 (atomic number: 34), the most common isotope of this element. The nucleus consists of 34 protons (red) and 46 neutrons (blue).

How many electrons are in an atom that has an atomic number of 34 and charge of 2?

Since we have a selenium atom with a charge of -2, it means that the number of electrons is greater than the number of protons by 2. If we have 34 as the number of protons, therefore, we will have 36 as the number of electrons.

What is the atomic number of selenium if it has 34 protons and 34 electrons?

Selenium is a chemical element with symbol Se and atomic number 34. Classified as a nonmetal, Selenium is a solid at room temperature.

What is the atomic number of 35 protons 35 electrons and 45 neutrons?

Bromine has 35 protons and a mass number of 80. a) How many neutrons does the atom of bromine have? The mass number = protons + neutrons. Bromine has a mass number of 80 and 35 protons so 80-35 = 45 neutrons.

Is the element with an atomic number of 34 a metal nonmetal or metalloid?

Selenium is a chemical element with the symbol Se and atomic number 34. It is a nonmetal (more rarely considered a metalloid) with properties that are intermediate between the elements above and below in the periodic table, sulfur and tellurium, and also has similarities to arsenic.

What is the symbol for a neutral atom with 35 protons 35 electrons and 46 neutrons?

The correct option is (d.)

The mass number is equal to the sum of the number of protons and the number of neutrons. So, the mass number of the given species is 81 (35 + 46). The element with the atomic number 35 is bromine (Br).

What is the atomic number of sulfur 34 and how many neutrons does it contain?

Properties of Sulfur-34 Isotope:
Properties of Sulfur-34 Isotope:SULFUR-34
Relative Isotopic Mass33.96786701
Neutron Number (N)18
Atomic Number (Z)16
Mass Number (A)34
25 more rows

What is the atomic number of the atom with 36 protons 48 neutrons and 36 electrons?

Krypton has 36 protons and 48 neutrons in its nucleus giving it an Atomic Number of 36 and an atomic mass of 84. Krypton is a Noble Gas.

What is the mass number of an ion with 36 electrons 45 neutrons and a charge?

The sum of the protons and neutrons here is 81 as atomic mass is sum of number of protons and neutrons. Hence, the atomic mass number here is 81.

How many protons are present in an atom which has an atomic number of 34?

The number of neutrons present in Selenium (Se) with atomic number (34) and mass number 76 is 42 because the mass number is the sum of protons and neutrons present in the nucleus. Since the atomic number is 34 the number of protons present in the nucleus is 34.

What element contains 34 protons?

Z = 34, therefore the atom is selenium.

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What isotope has 34 protons and 45 neutrons?

Selenium has 34 protons and 45 neutrons in its nucleus giving it an atomic number of 34 and a atomic mass of 79.

What has 34 protons and 43 neutrons?

The element with the atomic number of 34 and the mass number of about 77 is Se . Therefore, an atom containing 34 protons, 43 neutrons, and 34 electrons would have the symbol c. 77Se.

What isotope has 35 protons and 44 neutrons?

Therefore, there are 35 protons and 35 electrons in isotope bromine-79. And the number of neutrons is the difference between the mass number and the atomic number. Therefore, there are 44 neutrons in isotope bromine-79.

What is an ion represented as with 34 protons 46 neutrons and 36 electrons?

Explanation: While the number nuclear protons as given is 34, and therefore we deal with the element selenium, there are 2 more electrons than protons, and therefore this species has an overall 2− charge. We represent this selenide ion as Se2− .

Is atomic number 34 a metal?

Selenium is a chemical element with the symbol Se and atomic number 34. It is a nonmetal (more rarely considered a metalloid) with properties that are intermediate between the elements above and below in the periodic table, sulfur and tellurium, and also has similarities to arsenic.

What isotope has a mass number of 34?

ChEBI Namesulfur-34 atom
DefinitionThe stable isotope of sulfur with relative atomic mass 33.9678668 and 4.21 atom percent natural abundance.
StarsThis entity has been manually annotated by the ChEBI Team.
Supplier Information
DownloadMolfile XML SDF
6 more rows

What atom has a mass number of 43?

Technetium : The Element of Atomic Number 43 | Nature.

What atom has a mass of 43?

The elements of the periodic table sorted by atomic mass
Atomic MassName chemical elementnumber
92.9064Niobium41
95.94Molybdenum42
98Technetium43
101.07Ruthenium44
110 more rows

What element has an atomic mass of 43?

Technetium is a chemical element with the symbol Tc and atomic number 43. It is the lightest element whose isotopes are all radioactive.

What is the mass number of an isotope with 35 protons 35 electrons and 46 neutrons?

The mass number is equal to the sum of the number of protons and the number of neutrons. So, the mass number of the given species is 81 (35 + 46). The element with the atomic number 35 is bromine (Br).

What element has 35 protons 36 electrons and 46 neutrons?

Bromine is a chemical element with symbol Br and atomic number 35.

What is the ion with 36 electrons 35 protons and 46 neutrons?

So Bromine Br−1 has 35 protons, 36 electrons and 45 neutrons.

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