Elementary structure of the atom - Jamb Physics Past Questions and Answers

Question 1:

• JAMB 2019

If the time of flight is 96seconds, calculate the horizontal range through the point of projection.

A. 84400m
B. 69000m
C. 61440m
D. 24000m

Question 2:

• JAMB 1980

Which of the following statements are true in the structure of atoms?

A. The atoms of the differnt element differ only in the number of protons and electrons
B. The num,ber of protons equals the number of electrons
C. Atoms are constructed according to the plan of our solar system
D. All of the above
E. A and C only

Question 3:

• JAMB 1980

Which of the following are true of atom?

A. Atoms are indestructible
B. All atoms of a pure substance, or elements are identical
C. Atoms of different substance have different weights
D. All of the above
E. A and B only

Question 4:

• JAMB 1984

Which of the following statements describes an atom accurately? i. atoms of all elements are identical ii. an atom contains a nucleus and number of electrons iii. due to the electrons in the atom an atom is negatively charged iv. electrons in the atom move in circular orbits round the nucleus

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