Elements A, B, C and D have 3, 20, 13 and 16 electrons respectively in their atom. Which of these is
most likely to be unable to form cation?
Answers
Answered by
1
Answer:
D. as an element having at no 16 will prefer gaining eletrons than donating ,so will form anion rather than cation
Answered by
0
answer is D
Explanation:
A=3 electrons.
electronic configuration is 2,1(metal)
B=20 elections
EC=2,8,8,2(metal)
C=13 electrons
EC=2,8,3(metal)
D=16 electrons.
EC=2,8,6(non metal)
metals =positively charged
non metals =negatively charged
D is a non metal so it cannot form a cation
if an element gain electrons it will form anion
if an element loses electrons it will form cation
so metals will form cation and non metals will form anion
if the number of electrons in the valence shell is less than 4 it is a metal
if the number of electrons in the valence shell is more than 4 it is a non metal
hope it helps you.
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