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A neutral atom of an element will have the same number of electrons as protons (atomic number). For example, the element magnesium has the atomic number 12, which means that a neutral magnesium atom will have 12 protons and 12 electrons.

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How many electrons in an element with one proton?

The number of PROTONs and the number of ELECTRONs are always equal in a neutral atom. Therefore an element with one PROTON will have one ELECTRON and that element will be called Hydrogen.


What is the number of protons plus the number of electrons?

The number of protons plus the number of electrons isn't a recognized figure in chemistry. The number of protons is the atomic number of an element. The number of electrons is the same as the number of protons except when the element is an ion. An ionic compound results in one or more electrons moving from one element to another element. Although this is a simplification, it can be described as the atom gaining or losing electrons. The number of protons plus the number of neutrons is the atomic weight of an element.


How can you determine the number of valence electrons in an atom?

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.


Does the number of outermost electrons in an atom change from one isotope of an element to another?

No.


What element has the same electrons as sodium?

The element that has the same number of electrons as sodium (which has 11 electrons) is neon. Neon is a noble gas with an atomic number of 10, meaning it has 10 electrons, while sodium has 11 electrons. The closest element with the same electron configuration as sodium would be magnesium, which has 12 electrons. However, magnesium and sodium differ by one electron.

Related Questions

How can one determine the number of electrons in an element?

To determine the number of electrons in an element, you can look at the element's atomic number on the periodic table. The atomic number represents the number of protons in the nucleus of an atom, which is equal to the number of electrons in a neutral atom.


How many electrons in an element with one proton?

The number of PROTONs and the number of ELECTRONs are always equal in a neutral atom. Therefore an element with one PROTON will have one ELECTRON and that element will be called Hydrogen.


How can one determine the number of electrons for an element on the periodic table?

To determine the number of electrons for an element on the periodic table, you can look at the element's atomic number. The atomic number represents the number of protons in the nucleus of an atom, which is equal to the number of electrons in a neutral atom.


What is the number of protons plus the number of electrons?

The number of protons plus the number of electrons isn't a recognized figure in chemistry. The number of protons is the atomic number of an element. The number of electrons is the same as the number of protons except when the element is an ion. An ionic compound results in one or more electrons moving from one element to another element. Although this is a simplification, it can be described as the atom gaining or losing electrons. The number of protons plus the number of neutrons is the atomic weight of an element.


Element 3 lithium has one valence electron and element 4 beryllium has two valence electrons Element 5 boron has how many valence electrons?

Boron has 3 valence electrons.Boron has 3 valence electrons.


How can one determine the number of valence electrons for an element on the periodic table?

To determine the number of valence electrons for an element on the periodic table, look at the group number of the element. The group number indicates the number of valence electrons. For example, elements in Group 1 have 1 valence electron, elements in Group 2 have 2 valence electrons, and so on.


What one number identifies the element?

The atomic number is the one number that identifies an element. It represents the number of protons in the nucleus of the atom, which determines the element's properties and place on the periodic table.


How can one determine the number of valence electrons for an element using the periodic table?

To determine the number of valence electrons for an element using the periodic table, look at the group number of the element. The group number indicates the number of valence electrons. For example, elements in Group 1 have 1 valence electron, elements in Group 2 have 2 valence electrons, and so on.


How can one determine the number of valence electrons of an element by using the periodic table?

To determine the number of valence electrons of an element using the periodic table, look at the group number of the element. The group number indicates the number of valence electrons. For example, elements in Group 1 have 1 valence electron, elements in Group 2 have 2 valence electrons, and so on.


How can one determine the number of valence electrons of an element using the periodic table?

To determine the number of valence electrons of an element using the periodic table, look at the group number of the element. The group number indicates the number of valence electrons. For example, elements in Group 1 have 1 valence electron, elements in Group 2 have 2 valence electrons, and so on.


How many electrons are in an oxygen atom that hasan atomic number of 8?

The atomic number of an element _is_ the number of electrons in one of its atoms. Indeed, a sample of an element can be defined as any combination of atoms with the same atomic number. Oxygen is the element with atomic number 8. It is the element whose atoms have 8 electrons in their neutral state (and 8 protons).


If an atom of iodine gains one electron it will have the same number of valence electrons as which element?

The same number of valence electrons as xenon.