Which of the given statements is/are true A. The 2nd group elements are called Alkali metals. B. The 1st group element is called Alkaline metals. C. The 17th group elements are called Halogens.?

Only A
B and C
Only C
A and C

LohaHridoy

4 views

2025-01-04 04:42

1 Answers

AhmedNazir

Option 3 : Only C

Elements that have similar valance shell electronic configurations, the same number of electrons in their outer orbitals and has similar properties are divided into groups.
The 2^nd group elements are called Alkaline Earth Metals, have ns² outermost configuration and belong to the s-Block Elements.
It contains elements from Beryllium (Be) to Radium (Ra).
The 1^st group elements are called Alkali Metals, have ns¹outermost configuration and belong to the s-block Elements.
It contains elements from Lithium (Li) to Francium (Fr).
The 17^th group elements are called Halogens and have ns² np⁵ outermost configuration and belong to the p-Block Elements.
It contains elements from Fluorine (Fl) to Ununseptium (Uus) / Tennessee (Ts).

4 views Answered 2022-09-04 04:29

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