This element is a metalloid of Group IV. It has valence electrons on the third energy level. Its name is , symbol. Its atomic number is and its mass number is . This element has neutrons.

How has the scientific community addressed the safety of chemicals? a. chemicals are repeatedly tested, even those that have existed for a long time. b. existing chemicals are tested if they have never been tested before. c. chemicals are tested if they are suspected to have caused a problem. d. only new chemicals are tested.

Write a net ionic equation to show that hydrofluoric acid, behaves as an acid in water.

Agas can holds 2.0 gal of gasoline. what is this quantity in cubic centimeters?