What is the atomic number of Lithium?
48
17
19
3
Correct answer is D
No explanation has been provided for this answer.
What is the atomic number of Helium?
1
2
3
9
Correct answer is B
No explanation has been provided for this answer.
What is the atomic number of Hydrogen?
1
2
6
8
Correct answer is A
No explanation has been provided for this answer.
What is the chemical symbol for Oganesson?
Og
Oa
On
Os
Correct answer is A
No explanation has been provided for this answer.
What is the chemical symbol for Tennessine?
Te
Tn
Ts
Gw
Correct answer is C
No explanation has been provided for this answer.