Question

Section - D 0.34 Read the table below and answer the following questions Element Mass Number Atomic Number A 11 5 B 18 9 С 3 2 D 23 11 E : 9 4 a) How many electrons are present in E. b) Which element has 12 neutrons in nucleus? c) Name one element which has valency 1. d) Draw atomic model with shells for element 'D'.​

Answer 1

Answer:

Element A B C D E

Mass number 11 19 4 23 9

Atomic number 5 9 2 11 4

a) how many electrons are present in E

b) which among the above is an inert gas and why

c) which will form negatively changed ion

d) which element has 12 neutrons and why

e) which atom will form cation with one positive charge

Explanation:

Answer 2

Answer:

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