Sem2 Chem Flashcards
1
Q
the smallest part of a element that can exist
A
atom
2
Q
a substance made of only one type of atom
A
element
3
Q
a substance made up of two or more different elements chemically bonded together
A
compound
4
Q
a substance consisting of two or more substances not chemically bonded together combined together
A
mixture
5
Q
a column of the periodic table that contains elements with similar chemical properties
A
group
6
Q
a row on the periodic table
A
period
7
Q
the general direction in which a set of data changes, i.e. increasing or decreasing
A
trend
8
Q
a series of chemical symbols showing the number of atoms of each element in the compound
A
chemical formula
9
Q
a letter or series of letters used to represent an element
A
chemical symbol
10
Q
oxygen
A
O
11
Q
hydrogen
A
H
12
Q
carbon
A
C
13
Q
sodium
A
Na
14
Q
chlorine
A
Cl
15
Q
CO2 (elements/atoms)
A
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