Which characteristics correctly describe a neutron?

The element which has four valence electrons is

Which set of properties would identify an unknown white solid as a molecular compound? Contains a metal. Has a definite crystal structure. Dissolves in water, but not in organic liquids. Melts at 80 degrees Celsius. Does not conduct electricity when melted.

A formula unit of ammonium sulfate consists of _____ ammonium ions and _____ sulfate ions.

Which product is formed by alpha emission from uranium-235? Complete the nuclear reaction shown. Then choose the product below. 

Which is the best description of a beta particle?

Determine the answer for the equation below with correct number of significant figures: 3.215 × 13 x 0.218 = _____

Which product is formed by alpha emission from osmium-192? Complete the nuclear reaction shown. Then choose the product below. 

The compound BrF3 would be called

What is the most likely charge on an ion formed by an element with a valence electron configuration of ns2np1?