Unit 1 - Atomic theory Flashcards Preview

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Flashcards in Unit 1 - Atomic theory Deck (14)
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1
Q

name group 1 of the periodic table

A

alkali metals

2
Q

name group 7 of the periodic table

A

halogens

3
Q

name group 0 of the periodic table

A

noble gases

4
Q

what happens as you go down group 1 of the periodic table

A

[alkali metals] get more reactive as you go down the group

5
Q

state the properties of group 1 of the periodic table

A

alkali metals react rapidly with water, producing an alkaline solution. They are very reactive as they only have 1 outer electron

6
Q

state the properties of group 7 of the periodic table and what happens as you go down the group

A

halogens are diatomic. some are liquids and some are gases. as you go down the group, halogens become less reactive

7
Q

state the properties of group 0 of the periodic table

A

noble gases are very unreactive. they are monatomic (exist as individual atoms)

8
Q

what is a compound

A

atoms of different elements joined by chemical bonds to form a new substance. can only be separated by chemical reaction

9
Q

if a compound’s name ends in ‘-ide’, the compound contains _____?

A

if a compound’s name ends in ‘-ide’, the compound contains 2 elements

10
Q

if a compound’s name ends in ‘-ate’ or ‘-ite’, the compound contains _____?

A

three or more elements, one of which is oxygen

11
Q

what is a mixture

A

when two or some substances are mixed but not chemically joined and no new substance is formed. mixtures can be separated by processes such as evaporation, filtration + distillation

12
Q

what is a solvent

A

a solvent is a liquid a solute dissolves in

13
Q

what is a solute

A

a solute is a solid which dissolves in a solvent (liquid)

14
Q

what is a solution

A

formed when a solute dissolves in a solvent