Question

Atomic Nucleus: The atomic number of an atom is equal to the number of what particles in the nucleus?:

A)

positrons
B)

protons
C)

neutrons
D)

electrons
E)

nucleons

Answer 1

B) protons

Step-by-step explanation:

The total number of protons in an atom represents the atomic number of that element. An element is generally expressed as

`^N_Z{A}`

Where,

A is the element

N is the Mass number i.e., the number of neutrons and protons in an atom.

Z is the atomic number.

The elements are arranged according to their atomic number in the modern periodic table.