nuclear fission
nuclear fusion
radioactive decay
spontaneous disintegration
Correct answer is A
No explanation has been provided for this answer.
9.6
10.6
11.6
20.0
Correct answer is A
No explanation has been provided for this answer.
How many protons does 4020Ca contain?
20
30
40
60
Correct answer is A
No explanation has been provided for this answer.
Which of the following scientists discovered the neutron?
Ernest Rutherford
J.J Thompson
James Chadwick
R. A. M illikan
Correct answer is C
No explanation has been provided for this answer.
Which of the following alloys is mainly used in making statues?
Brass
Bronze
Duralumin
Steel
Correct answer is B
No explanation has been provided for this answer.