The no. of electrons or protons gives theAtomic massAtomic no.Molecula

1.	The no. of electrons or protons gives theAtomic massAtomic no.Molecular massNone
Answer» Answer: Atomic Number Explanation: Atomic number is DEFINED as the number of electrons or the number of protons present in an atom. Since the number of protons equals to the number of electrons in a stable atom, which makes it electrically neutral. Let's take an atom for example: CALCIUM An image has been attached below for your reference. When you COUNT the number of electrons in the shells of the atom, you will OBSERVE that there are 20 electrons present. If you see, the nucleus of the calcium atom has 20 protons. Hence, the number of electrons equals to the number of protons in an atom. Also, we can CONCLUDE that the atomic number of the calcium atom is 20.

The no. of electrons or protons gives theAtomic massAtomic no.Molecular massNone

Answer»

Answer:

Atomic Number

Explanation:

Atomic number is DEFINED as the number of electrons or the number of protons present in an atom.

Since the number of protons equals to the number of electrons in a stable atom, which makes it electrically neutral.

Let's take an atom for example: CALCIUM

An image has been attached below for your reference.

When you COUNT the number of electrons in the shells of the atom, you will OBSERVE that there are 20 electrons present.

If you see, the nucleus of the calcium atom has 20 protons.

Hence, the number of electrons equals to the number of protons in an atom.

Also, we can CONCLUDE that the atomic number of the calcium atom is 20.