Question

of laminium is A) 2 00 B) 8 C) 3 D) 5​

Answer 1

Answer:

Write question properly.

Answer 2

Valency of aluminum:

Explanation:

• Aluminum is the chemical element place in 13 th group of the chemical periodic table.
• It is represented by symbolically 'Al'.
• The atomic mass of aluminum is 26.9815.
• The atomic no of aluminum is 13.
• The valency of an element is the combining capacity with other atoms when it forms chemical compounds or molecules.
• The electronic configuration of aluminum is 2,8,3. Hence it has 3 more electrons the complete valence shell.
• It is easy for aluminum to share 3 electrons with other molecules rather than accepting 5 electrons.
• Hence the valency of aluminum is +3.
• It is a silvery-white molecule.

Correct option is: C) 3