what is the valency of elements having atomic number 1 to 15 ?
Answers
Answer:
hy
Explanation:
valency is the number of electrons that must be lost or gained by an atom to obtain a stable electron configuration.
Atoms Atomic no. Valency
Hydrogen 1 1
Helium 2 0
Lithium 3 1
Beryllium 4 2
Boron 5 3
Carbon 6 4
Nitrogen 7 3
Oxygen 8 2
Fluorine 9 1
Neon 10 0
Sodium (Na) 11 1
Magnesium (Mg) 1 2
Aluminium 13 3
Silicon 14 4
Phosphorus 15 3
Answer:
Hydrogen - 1
Helium - 0
lithium - 1
Beryllium-2
Boron-3
Carbon-4
Nitrogen - 3
Oxygen- 2
Fluorine- 1
Neon- 0
Sodium- 1
Magnesium- 2
Aluminum- 3
Silicon- 4
Phosphorus- 3
Explanation:
hope it helps you please mark it as brainliest