Which group is likely to lose two electrons?
a) group I
b) group II
c) group VI
d) group VII
The atomic number of neon is 10. It is in group VIII A. what will be its valency?
a) 1
b) 2
c) 3
d) 0
Formation of Ions:
Ions are formed when atoms lose or gain
electrons in order to fulfill the octet rule and have full outer valence
electron shells. When they lose electrons, they become positively charged and
are named cations. When they gain electrons, they are negatively charged and
are named anions.
How atoms
combine together to form compounds?
a) they gain electrons
b) they lose
electrons
c) they share electrons
d) all of these
An atom is electrically……..
a) neutral (no charge)
b) positively charged
c) negatively charged
d) none of these
Explanation:An atom is electrically neutral because the overall charge of an atom is zero. The atoms are made of three subatomic particles called protons, electrons and neutrons. Protons are positively charged particles, electrons are negatively charged and neutrons are neutral.
When an atom becomes electrically charged?
a) when it loses electron/s
b) when it gains electron/s
c) both a and b
d) none of them
