Question

Which of the following pairs of atoms are isoelectronic?

Accepted Answer

$$_{17}^{37}Cl^- $$  and $$_{19}^{39}K^+ $$

Answer

$$_{56}^{130}Ba $$  and $$_{56}^{130}Ba^{2+} $$

Answer

$$_{10}^{22}Ne $$  and $$_{11}^{22}Na $$

Answer

$$_{8}^{16}O^{2-} $$  and $$_{8}^{17}O $$

Question 29 - Science Practice Test for the HiSET Test