Carbon-14 and carbon-12 have the same number of protons but a different number of neutrons. These different forms of the same element are called___

A. radioactive

B. isotopes

C. nuclei

D. tracers

When rocks return to the earths mantle what are the main factors that control this change.

What is the role of atoms in chemical reactions.?

Where do the OH - ions go as additional acid is added? 1. they evaporate. 2. They combine with excess H + ions to form more water. 3. They remain in solution at the same concentration. 4. They remain in solution but change concentration.,

Which of the given statements best represent what to do in the event of a spill of concentrated sulfuric acid. a. First, rinse the affected area with copious amount of water. b. First, rinse the affected area with copious amounts of sodium hydroxide.

How many molecules are in 237 g (about a cup of water?

What state of matter has a definite shape but indefinite volume?

1) What is the electron configuration of an electrically neutral atom of sodium? 2) What is the electron configuration of an electrically neutral atom of neon? 3) What is the electron configuration of an electrically neutral atom of oxygen?

5.1 ounces to grams.

Flowering plants reproduce from seeds which role does an Apple play in this process

What would make bromine a group 17 element more similar to a noble gas