The smallest basic unit of matter.

one particular type of atom, and it cannot be broken down into a simpler substance by ordinary chemical means

substance made of atom of diff elements bonded together in a certain ratio.

an atom that has gained or lost 1 or more electrons.

form through the electrical force between oppositely charged ions.

forms when atoms share a pair of electrons.

two or more atoms held together by convalent bonds

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Biology Chp.2 Sec.1

Word Study Guide Vocab

Word	Defintion
Atom	The smallest basic unit of matter.
Element	one particular type of atom, and it cannot be broken down into a simpler substance by ordinary chemical means
Compound	substance made of atom of diff elements bonded together in a certain ratio.
Ion	an atom that has gained or lost 1 or more electrons.
Ionic Bond	form through the electrical force between oppositely charged ions.
Convalent Bond	forms when atoms share a pair of electrons.
Molecules	two or more atoms held together by convalent bonds