Question

Which of the following is isoelectronic to the noble gas argon?

A. Mg atom, 1s22s22p63s2

B. Ca atom, 1s22s22p63s23p44s2

C. Ca2+ ion, 1s22s22p63s23p6

D. Cl atom, 1s22s22p63s23p5

E. N3- ion, 1s22s22p63s23p6

Answer 1

you have already asked similar question abt 30 min back right
can you guess

Answer 2

I was thinking, is D correct?

Answer 3

No :(

Answer 4

do you know how many electrons are there in Argon

Answer 5

Hmm... then C?

Answer 6

18

Answer 7

yaaa its C
Ca+2 and Cl is possible only when Clis in anionic from that is Cl-

Answer 8

Ca+2 has 18 electrons right
therfore Ca+2 is isoelectronic with argon

Answer 9

iso electronic mean the species should have same no of electrons ok!!

Answer 10

Ok, Thanks! :)

Answer 11

ur welcome

Answer 12

anymore questions???

Answer 13

Tons :(

Answer 14

what ???

Answer 15

Which of the following particles are free to drift in metals?

A. protons

B. neutrons

C. electrons

D. cations

E. anions

Is the correct answer electrons? since they are what are passed or shared between atoms to form compounds

Answer 16

yaaa ur right

Answer 17

u post like anew questions so all can see it

Answer 18

Ok thanks!