Question

1. Which two groups of elements in the periodic table are the most reactive?(1 point) A) alkali metals and halogens B) alkaline earth metals and halogens C)halogens and noble gases D)noble gases and alkali metals 2. Use the periodic table to answer the question. Which statement about nitrogen (N) and phosphorus (P) is correct? (1 point) A)They have the same number of valence electrons. B)They have the same number of electron shells. C)They are both classified as halogens. D)They are both inert. 3. Which property do transition metals have in common?(1 point) A)They usually have low densities. B)They are usually very soft. C)They are usually very reactive. D)They usually have high melting points. 4. Neon and argon are both in Group 18 of the periodic table. Which property do they most likely share?(1 point) A)low or no reactivity B)silver color C)strong odor D)metallic texture 5. A scientist studies an element that has seven electrons in its outer shell, is fairly toxic, and is highly reactive. To which group of the periodic table does this element belong?(1 point) A) 17 B) 1 C) 18 D) 2 PLEASEE HELP I NEED IT DONE BY TMR

Answer 1

Answer:

Explanation:

1) alkali metals and halogens as alkalis have 1 electron they need to get rid of in order to gain a full outer shell of electrons and the halogens have to gain 1 electron.

2) they have the same number of electrons on the outer shells

3)they usually have high melting points

4) low or no reactivity

5) group 7