The atomic number of Beryllium is 4 and its electronic configuration is 2, 4. In forming a compound, it………
a) gains 6 electrons
b) it shares 2 electrons
c) it loses 2 electrons
d) it shares 4 electrons
The atomic number of Beryllium is 4 and its electronic configuration is 2, 2. In forming a compound, its valency is……..
a) 4
b) 5
c) 2
d) 0
The atomic number of Neon is 10 and its electronic configuration is 2, 8. How many electron/s is/are present in its outermost shell?
a) 2
b) 5
c) 8
d) 3
The atomic number of Neon is 10 and its electronic configuration is 2, 8. In forming a compound, it………
a) gains 8 electrons
b) it shares 8 electrons
c) it loses 8 electrons
d) none of these
The atomic number of Neon is 10 and its electronic configuration is 2, 8. In forming a compound, its valency is……..
a) 3
b) 8
c) 2
d) 0
The atomic number of Magnesium is 12 and its electronic configuration is 2, 8, 2. How many electron/s is/are present in its outermost shell?
a) 2
b) 12
c) 8
d) 3
plz correct its electronic configuration is 2, 2 so it lose 2 electron
by at 2025-03-15 05:39:29