Question

Which one of the following statements concerning elements in the Periodic Table is correct? *
2 points
A Elements of the same group all have the same number of electrons in the outermost occupied electron shell.
B Elements of Group 16 occur as cations in ionic compounds.
C Oxides of elements in Groups 16 and 17 are basic.
D The halogens (Group 17) are all gases at room temperature.​

Answer 1

Answer:

A

Explanation:

B elements of group 1 occur as anions

C oxides of elemnts in groups 16 and 17 are acidic

D all halogens are not gases at room temp. (fluorine and chlorine are gases)

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