The halogens, the elements of family 17 on the periodic table, combine easily with elements from family 1. when a halogen reacts with a metal, what type of compound is formed?
1.potassium 2. alloys 3.noble gas 4.salt

Stage in which a typical star has completely stopped fusion

What does the symbol (–hfus) indicate in a phase change?

Predict the relative bond lengths of the three carbon-oxygen bonds in the carbonate ion (co2−3). what would you expect the charge to be on each oxygen? match the words in the left column to the appropriate blanks in the sentences on the right. make certain each sentence is complete before submitting your answer.