SSC MTS EXAM

SSC

CHEMISTRY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
An element with a mass number of 10 and an atomic number of 6 has how many protons?
A
5
B
8
C
6
D
10
Explanation: 

Detailed explanation-1: -The element carbon (C) has an atomic number of 6, which means that all neutral carbon atoms contain 6 protons and 6 electrons.

Detailed explanation-2: -Carbon atoms with 7 neutrons have an atomic mass of 13 (6 protons + 7 neutrons = 13). These atoms are the isotope called carbon-13.

Detailed explanation-3: -Carbon-12: with 6 protons and 6 neutrons and an atomic mass of 12.

Detailed explanation-4: -Before you start, take a look at carbon on the periodic table. It has an atomic number of 6. That means a carbon atom has 6 protons, 6 neutrons, and 6 electrons.

There is 1 question to complete.