Question

answer these questions pls pls pls ​

Answer 1

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4) Option -(d)

→ nitrogen, oxygen, fluorine belongs to 2nd period.

→ In a quantum mechanical description of atomic structure, this period corresponds to the filling of the second (n = 2) shell, more specifically its 2s and 2p subshells.

5)

→ CH3COONa

≈≈> Cation - Na+

≈≈> Anion - CH3COO -

→ NH4NO3

≈≈> Cation - NH4+

≈≈> Anion - NO3-

6) Relative atomic mass or atomic weight is a dimensionless physical quantity defined as the ratio of the average mass of atoms of a chemical element in a given sample to the atomic mass constant. The atomic mass constant is defined as being of the mass of a carbon-12 atom

7) Magnesium Sulphide ≈≈> MgS

→ Mg- 1 atom ; S- 1 atom

Ratio = 1 : 1

8) Refer the attached image......

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Answer 2

Answer

step by step explanation::