Question

Which
one of the following statements
concerning elements in the Periodic Table is
correct?
The halogens (Group 17) are all gases at
room temperature.
Elements of the same group all have the
same number of electrons in the outermost
occupied electron shell.
Elements of Group 16 occur as cations in
ionic compounds.
Oxides of elements in Groups 16 and 17 are
basic.
Marks: +4 / -1​

Answer 1

Answer:

elements of the samr group all have the same number of electrons in the outermost occupied electron shell.it is correct statement.