An element with the electron configuration of 1s 22s 22p 6 would have a combining power of
0
2
6
8
Correct answer is A
No explanation has been provided for this answer.
Which of the following ions has the electron configuration 2,8,8?
Na+
Mg2+
F-
CI-
Correct answer is D
Chlorine(Cl) has configuration 2,8,7 but Chlorine ion (Cl-) has 18 electrons and configuration 2,8,8.
Nuclear fission
Nuclar fusion
Radioactive decay
Spontaneous decay
Correct answer is B
No explanation has been provided for this answer.
Which of the following electrons configurations correctly represents an inert element?
1s22s22p4
1s22s22p63s2
1s22s22p63s23p4
1s22s22p6
Correct answer is D
No explanation has been provided for this answer.
How many isotopes has hydrogen?
2
3
4
5
Correct answer is B
No explanation has been provided for this answer.