GENERAL KNOWLEDGE

GK

CHEMISTRY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Atomic number is equal to
A
Number of nutron
B
Number of protons
C
Number of electrons
D
Total number of protons and neutrons
Explanation: 

Detailed explanation-1: -The number of protons in the nucleus of the atom is equal to the atomic number (Z). The number of electrons in a neutral atom is equal to the number of protons. The mass number of the atom (M) is equal to the sum of the number of protons and neutrons in the nucleus.

Detailed explanation-2: -The number of electrons on a neutral atom is equal to the number of protons in the nucleus of the atom. This is known as the atomic number, Z. The removal or addition of electrons to a neutral atom creates ions that have a net negative or positive charge.

Detailed explanation-3: -The atomic number equals the charge on the nucleus. It therefore also equals the number of protons in the nucleus and also equals numerically the number of electrons in the neutral atom. The atomic number has the symbol Z.

Detailed explanation-4: -In a neutral atom, the number of electrons is equal to the number of protons. For an ion, charged positively or negatively, the number of electrons is the atomic number (the number of protons) minus the charge of the ion.

There is 1 question to complete.