Column A

Question

1.
Silver (Ag):
Silver (Ag)
2.
Barium (Ba):
Barium (Ba)
3.
Iodine (I):
Iodine (I)
4.
Argon (Ar):
Argon (Ar)
5.
Potassium (K):
Potassium (K)
Column B
a.Noble Gas
b.Transition Metal
c.Alkali Metal
d.Halogen
e.Alkaline Earth Metal
Question 40
An atom of an element can change into an atom of another element if it is:

a
extremely stable
b
radioactive and it's nucleus can trap or emit particles
c
an ion and it's atomic number is larger than it's mass number
d
an isotope and it has more electrons than neutrons

Answer 1

The correct answer to Question 40 is:

b. radioactive and its nucleus can trap or emit particles

This is because a radioactive atom can transform into another element by emitting particles or radiation, such as alpha or beta decay, which can change the atomic number and thus convert it into a different element.