Question 22

Phosphorus (P) has chemical properties that are similar to nitrogen's.

Phosphorus is directly below nitrogen in Group 15 of the periodic table, indicating that it shares similar chemical properties due to having the same number of valence electrons.

A) Boron (B)

Boron is located in Group 13 of the periodic table, which is distinct from nitrogen's location in Group 15. As a result, boron does not share similar chemical properties with nitrogen, particularly in terms of bonding and reactivity.

B) Phosphorus (P)

Phosphorus is in the same group as nitrogen, making it chemically similar. They both have five valence electrons, which leads to comparable bonding behavior and reactivity patterns, confirming that phosphorus is the correct choice.

C) Silicon (Si)

Silicon is found in Group 14, which places it one group away from nitrogen. While silicon shares some properties with nitrogen due to being a non-metal, it does not exhibit the same chemical behavior or reactivity that nitrogen and phosphorus do, making it less similar.

D) Neon (Ne)

Neon is a noble gas located in Group 18, far removed from nitrogen's group. Noble gases have completely filled valence shells and do not typically engage in chemical reactions, which starkly contrasts the behavior of nitrogen and its analogs.

Conclusion

Phosphorus is the only element listed that shares the same group as nitrogen on the periodic table, which accounts for their similar chemical properties. The other options fail to exhibit this similarity due to their positions in different groups, resulting in distinct chemical behaviors. Thus, phosphorus is definitively the correct answer.