Bio 1 Vocab 2.1

Test Description: Review for vocab quiz

Instructions: Answer all questions to get your test result.

1) Basic unit of matter

2) A substance made up of atoms of two or more different elements joined by chemical bonds.

3) A chemical Bond that involves sharing a pair of electrons between atoms in a molecule.

4) A subatomic particle that has a negative charge.

5) A pure substance that consists entirely of one type of atom so they all have the same number of protons.

6) A chemical bond resulting from the attraction between oppositely charged ions.

7) An atom with the same number of protons and a different number of neutrons from other atoms of the same element,

8) A group of atoms held together by covalent bonds.

9) A region that is located at the center of an atom and contains most of the atom's mass.

10) A slight attraction that develops between the oppositely charged regions of nearby molecules (caused by polar bonds)


*select an answer for all questions

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