The number of s-block elements in the present form of periodic table
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Answer:
14 elements
Explanation:
S block comprises of 14 elements: hydrogen (H), lithium (Li), helium (He), sodium (Na), beryllium (Be), potassium (K), magnesium (Mg), rubidium (Rb), calcium (Ca), cesium (Cs), strontium (Sr), francium (Fr), barium (Ba), and radium (Ra).
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Answer and Explanation:
s-block element are elements whose final electron is placed in the s-orbital
The s-block consists of 2 groups namely :
- Group 1
Alkali metals
- Group 2
Alkaline earth metals
The alkali metals is consituted of the following elements :
- Lithium
Li
- Sodium
Na
- Potassium
K
- Rubidium
Rb
- Caesium
Cs
- Francium
Fr
The alkaline earth metals is constituted of the following elements :
- Beryllium
Be
- Magnesium
Mg
- Calcium
Ca
- Strontium
Sr
- Barium
Ba
- Radium
Ra
Hence, the s-block has 6+6 = 12 elements in it
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