Answer: Option (c) is the correct answer.
Explanation:
A particle that contains two protons and two neutrons bounded together is known as an alpha particle.
It is known that an alpha particle has a large mass and due to this they travel very slowly. As a result, they tend to have low velocity.
Hence, we can conclude that alpha particles cannot penetrate deeply into solids because they have low velocity.
Answer:
SnCrO4
Explanation:
Tin has a charge of 2+
Chromate has a charge of 2-,
therefor, the formula is equal.
