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Mass number = number of protons + number of neutrons

Number of electrons = number of protons = mass number of an isotope - number of neutrons

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Q: Can you use the mass number of an element to determine the number of electrons in an atom?
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Related questions

What number of an element can be used to determine the number of electrons in an atom?

The Atomic Number of an element is the same as the number of protons in the nucleus of an atom of that element and/or the number of electrons a in neutral atom of that element.


How can you determine how many valence electrons an atom has?

You can determine how many valence electrons an atom has by what family the element of the atom is in. For instance, if the element is in family 8A, the number of valence electrons will be 8. Or, if the element is in family 2A, the number of valence electrons for the atom will be 2. So, whatever number family the atom is in, the number of valence electrons equals that.


Do electrons determine what kind of element an atom is?

The number of protons determine the element. It is equal to the atomic number. The number of electrons is equal to the number of protons only of the atom is neutral.


How do you determine the number of electrons in a atom?

The atomic number of an element is the number of protons in the nucleus of an atom of that element. In a neutral atom, the number of protons is equal to the number of electrons.


What element does the electrons in a atom determine?

In a neutral atom the number of electrons is equal to the number of protons.


Can you determine what an element is if you know the number of electrons in a neutral atom?

Yes, in a neutral atom the number of electrons and protons is equal, and it is the number of protons that determines what element the atom is. So, by looking at the number of electrons you can tell what element it is.


How do you determine the number of electrons inone atom of an element?

the number of electrons of an atom is the same as it's atomic number


Does an electron determine what element it is?

The number of protons determine which element an atom is and normally the number of electrons is equal to it. Strip an electron off an iron atom and you have an ionised iron atom.


Can the mass number of an element be used to determine the number of electrons in an atom?

No. The mass number can be used, however, to determine the number of neutrons. Electrons can only be determined by knowing the atom's charge.


How do you determine the number of electrons of an atom using the periodic table?

The number of electrons in each atom of an element is the same as the atomic number shown in the periodic table entry for the element.


What do the number of electrons determine in the elelment?

The number of electrons in an element, jointly with the number of protons, determines the net electric charge on an atom or ion of the element.


Can the mass number be used to determine the number of electrons in an atom?

The number of electrons is the same as the number of protons, which is the atomic number of the element.


Can you determine the element if you only know the number of electrons?

Yes, The number of electrons in an atom equals the number of protons. This number defines the element atomic number which is unique for each element.


How do you determine the valence electrons of aluminium?

In the neutral atom of a chemical element number of electrons= number of protons=atomic number.


What can you determine from the atomic number of an atom?

The atomic number is basically what you use to identify the atom as which element. It is the number of protons, and if it has no charge, the number of electrons.


The number of electrons in an atom of an element is the same as the element's?

The amount of electrons in an atom of an element is equal to the amount of protons in the atom which is equal to the element's atomic number.


How can you determine the number relate to the protons and electrons of an element?

Protons are positively charged, electrons are negatively charged. Each atom has the same number of electrons as protons.


What does the number of protons or electrons in an atom conclude?

The number of protons in an atom determine what element it is, while the number of electrons is what gives it it's electric charge (positive, neutral, or negative. i.e. if there are 5 protons and 5 electrons, the atom will have a neutral charge.


How do you determine the number of electron?

In a neutral atom the number of electrons is equal to the number of protons. The number of protons in the atoms of an element is the element's atomic number on the periodic table.


What number of the outer energy level of an atom helps determine which category an element belongs in?

electrons


What aspect of an element determines how the element will change when it reacts with another element?

The number of valence electrons an element atom contains will determine its chemical properties.


What is The number of protons in an atom of an element is the element's?

The number of protons in an atom of an element is equal to the number of electrons in that atom which is equal to that element's atomic number.


An element has an atomic number of 80 How many protons and electrons are in an atom of the element?

An element has an atomic number of 80. How many protons and electrons are in a neutral atom of the element?


What Combinations of atoms that contain different elements?

An 'atom' contains only protons, neutrons and electrons, and the number of those determine what element or isotope of that element the atom is. It is therefore impossible to say an atom can 'contain' an element.


What is the description for nucleus?

a collection of protons and neutrons that provide the main weight to an atom they are the centre of the atom and are orbited by electrons. they make up the atomic number for the element and determine the element on the number of protons