The element ________ is the most similar to sodium in chemical and physical properties.
A) Mg
B) Br
C) N
D) K
E) Sr
Question 2
Hydrogen can have oxidation states of ________.
A) +1 only
B) -1, 0, and +1
C) 0 and +1 only
D) -1 and +1 only
E) 0 only
Question 3
Xe6s2 is the electron configuration for ________.
Fill in the blank(s) with correct word