Which element has the same number of valence electrons as As (arsenic)? Group of answer choices

Al (aluminum)

Sb (antimony)

Se (selenium)

Ge (germanium)

Agas diffuses 1/7 times faster than hydrogen gas (h2). what is the molar mass of the gas? 100.10 g/mol 98.78 g/mol 86.68 g/mol 79.98 g/mol

What is the correct lewis dot structure for arsenic?

With the largest atoms and the smallest number of valence electrons and with the smallest atoms and the greatest number of valence electrons are the most reactive. a. nonmetals; metals b. nonmetals; transition elements c. transition elements; metals d. metals; nonmetals