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1Q-Smallest particle of an element that cannot be broken into smaller stable parts.

2Q-Center of an atom containing protons and neutrons.

3Q-Positively charged particle found in nucleus.

4Q-No charge particle in nucleus.

5Q-Negatively charged particle found outside nucleus.

6Q-A pure substance made of only one kind of atom.

7Q-Nitrogen, Carbon, Hydrogen, Oxygen, Phosphorus, Sulfur. 98% of all living organisms.

8Q-States that atoms lose, gain or share electrons in order to acquire a full set of 8 valence electrons.

9Q-Electrons on the outermost energy level of an atom.

10Q-How many electrons can the first shell hold?

11Q-How many electrons can the second shell hold?

12Q-How many electrons can the third shell hold?

13Q-Formed when one or more electrons are transferred from one atom to another.

14Q-Covalent Bonds

15Q-Weak bonds formed between charged hydrogens.

16Q-Water has high heat capacity because of bonds. Increase temperature to break them. Water also has low freezing point, making it less dense as a solid. It has a high boiling point.

17Q-Water has covalent bonds, one oxygen and two hydrogens. The hydrogens are slightly positive and the oxygen is slightly negative, making water a polar molecule.

Water is also a solvent and has neutral pH.

18Q-Attraction between molecules of the same substance.

19Q-An attraction between molecules of different substances.

20Q-A liquid substance capable of dissolving other substances.

21Q-A substance that is dissolved in a solvent.

22Q-Measure of hydrogen ions.



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1Q-Smallest particle of an element that cannot be broken into smaller stable parts. 1A-Atom

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