Jamb Chemistry 2010 Past Questions and Answers

Question 6:

• JAMB 2010

Moving from left to right across a period, the general rise in the first ionization energy can be attributed to the

A. Decrease in nuclear charge
B. Increase in nuclear charge
C. Decrease in screening effect
D. Increase in screening effect

Question 7:

• JAMB 2010

How many unpaired electron(s) are there in the nitrogen sub-levels/

A. 3
B. 2
C. 1
D. None

Question 8:

• JAMB 2010

The stability of the noble gases is due to the fact that they

A. Have no electron in their outermost shells
B. Have duplet or octet electron configurations
C. Belong to group zero of the periodic table
D. Are volatile in nature

Question 9:

• JAMB 2010

The maximum number of electrons in the L shell of an atom is

A. 2
B. 8
C. 18
D. 32

Question 10:

• JAMB 2010

Elements in the same period in the periodic table have the same

A. Number of shells
B. Atomic number
C. Chemical properties
D. Physical properties