Jamb Chemistry 1986 Past Questions and Answers

Question 46:

• JAMB 1986

An element with atomic number twelve is likely to be

A. Electrovalent with a velocity of 1
B. Electrovalent with a valency of 2
C. Covalent with a valency of 2
D. Covalent with valency of 4

Question 47:

• JAMB 1986

Which of the following groups of physical properties increases from left to right of the periodic table?
i. Ionization energy ii. Atomic radius iii. Electronegativity iv. Electron affinity

A. I and ii
B. I, ii and iii
C. Iii and iv
D. I, ii, iii and iv