Question

Two element Xand Y have atomic number 12 and 16 to which period of the modern periodic table do these two elements belonged what type of bond formed why and them also give the chemical formula

Answer 1

Answer:

Explanation:

X is Magnesium

y is sulphur

They belongs to 3rd period

They will form ionic bond

Their chemical formula would be MgS

Their valency is 2

Answer 2

Answer:-

• X and Y belongs to 3rd period

• Ionic bond is formed between them

MgS is the chemical Formula

Explanation:-

Given:-

• Atomic no. of X is 12
• Atomic no. of Y is 16

To Find:

• The period to which X, Y belongs to
• Type of Bond formed between X and Y

Solution:-

W.k.t,

element with Z = 12 is,

Magneusium

element with Z = 16 is,

Sulphur

Magnesium and Sulphur are the elements of 3rd period.

Since, Electronic configuration ends with principal quantam number = 3

Type Bond formed between Mg and S

$Mg - 1{s}^{2} \: 2{s}^{2} \: 2{p}^{6} \: 3 {s}^{2}\:$

$S - 1{s}^{2} \: 2{s}^{2} \: 2{p}^{6} \: 3 {s}^{2}\: 3{p}^{4}$

Here,

• Valency of mg is 2. Hence, it donates two electrons

• Valency of S is 2 and it accepts 2 electrons.

• The electrons donated by Mg is accepted by S and A IONIC BOND IS FORMED BETWEEN BOTH ELEMENTS

Chemical Formula:-

MgS