Question 39

Match each element to its correct group.

Column A
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
Time left for this assessment:
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1 answer

Question 39: Match each element to its correct group.

  1. Silver (Ag): b. Transition Metal
  2. Barium (Ba): e. Alkaline Earth Metal
  3. Iodine (I): d. Halogen
  4. Argon (Ar): a. Noble Gas
  5. Potassium (K): c. Alkali Metal

Question 40: An atom of an element can change into an atom of another element if it is:

b. radioactive and its nucleus can trap or emit particles

This is because radioactive atoms can undergo decay processes that result in the transformation into different elements.

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