How many electrons can be accommodated in N shell?
a) 2
b) 8
c) 18
d) 32
What is the symbol for hydrogen atom?
a) H
b) D
c) O
d) He
Which of the following electronic configuration (K, L, M) is correct for hydrogen atom whose atomic number is 1?
a) 1,0,0
b) 2,0,0
c) 2,1,0
d) 2,2,0
What is the symbol for helium atom?
a) H
b) D
c) O
d) He
Which of the following electronic configuration (K, L, and M) is correct for helium atom whose atomic number is 2?
a) 1,0,0
b) 2,0,0
c) 2,1,0
d) 2,2,0
What is the symbol for lithium atom?
a) T
b) Na
c) Li
d) Ne
