NURSING ANM AND GNM

NURSING EXAM QUESTIONS

MICROBIOLOGY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
The atomic number equals the number of
A
protons.
B
neutrons
C
electrons
D
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: -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.