The great pattern of organization in nature is maintained by

Organisms/living things are best defined by the ability to

If an atom has an atomic number of 17 and a mass number of 35, the number of neutrons in its nucleus equals ___.

The smallest unit of matter that can enter into chemical combination is a/an

An electrically neutral atom with an atomic number of 7 will have __ occupied electron shell(s). 

The only atom that has a nucleus with no neutrons is ______.

An atom of an element with 17 protons has ____ electrons in its first shell and _____ in its second shell and _____ in its third shell.

The three isotopes of carbon 12C (Carbon-12), 13C (Carbon-13), and 14C (Carbon-14) have different numbers of 

Aquatic living things are able to survive the winter thanks to which property of water?

Hydrogen bonds form when ____.