Question

_____ determines the type of element an atom is. The number of neutrons The number of electrons The number of protons The number of atoms

Answer 1

Answer: The correct answer is number of protons.

Explanation:

Atomic number is defined as the number of protons that are present in an atom.  It is represented by the symbol 'Z'.

Atomic number = number of protons

Mass number is defined as the sum of number of protons and neutrons that are present in an atom.  It is represented by the symbol 'A'.

Mass number = Number of protons + Number of neutron

An ion is formed when an atom looses or gains electron.

• When an atom looses electrons, it will form a positive ion known as cation.
• When an atom gains electrons, it will form a negative ion known as anion.

Every element has a unique number known as atomic number. This number is identified by the number of protons that are present in an atom.

Hence, the correct answer is number of protons.

Answer 2

the atomic number determines the tyoe of element an atom is.

the atomic number means the number of protons in an atom.

atoms of different elements have different numbers of protons and different atomic numbers so you can identify the element based on the atomic number