Question

An element E has atomic number 19. It belongs to Group
(enter your answer in numerals). It is a
(metal/non-metal)

Answer 1

Answer:

Electronic configuration Of element E

K L M N

2 ,8, 8 ,1

Valency of P is 1

As element P has 4 shells so it belongs to 4 period &

Its valency is (1) so it belongs to first group

Therefore it is a metal.

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Answer 2

Answer:

( If 9 1⁄3 × 3 2⁄3 ) / (27 1⁄2 × 3 1⁄6) and Simplify 0.34 - 0.0032 and express the result in the form p/q, where p & q are integers and q ≠ 0. (both are different questions)

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