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Elements, Compounds and Mixtures Flashcards | StudBud
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Elements, Compounds and Mixtures
The periods of the periodic table are
A compound can be described as
Elements, Compounds and Mixtures
20 terms
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Year 8 Science
Flashcards
20 cards
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Answers
1
A compound can be described as
a group pf elements
substance comprised of 2 or more elements not bonded
substance of more than one element
substance comprised of 2 or more elements chemically bonded
2
The periods of the periodic table are
the horizontal rows
on the left
on the right
the vertical columns
3
Chemical formula for compound benzene containing 6 hydrogen and 6 carbon atoms is
H6C6
CH
C6H6
HC
4
The study of atoms, elements, compounds and mixtures belongs to the following science
Psychology
Biology
Physics
Chemistry
5
The following sub atomic particle has a negative charge
Nucleus
Neutron
Electron
Proton
6
The nucleus of an atom contains
protons and neutrons
protons and electrons
protons
neutrons and electrons
7
the chemical symbol for silver is
Ag
Au
Ac
Si
8
Which of the following is NOT a mixture
milk
sea water
ink
carbon dioxide
9
The chemical symbol for gold is
G
Ag
Au
Go
10
If the atom has an atomic number of 8 then there will be
no electrons in the first shell and 8 in the second
6 electrons in the first shell and 2 in the second
8 electrons in the first shell
2 electrons in the first shell and 6 in the second
11
The chemical symbol for sodium is
Na
S
Cl
K
12
the chemical symbol for Magnesium is
Mn
M
Mg
Ma
13
Which of the following is not a compound
water
carbon dioxide
benzene
carbon
14
The chemical formula for the compound methane which contains one carbon and 4 hydrogen atoms is
H4C
CH4
HC4
C4H
15
If the atomic number of an elements is 10 then the atom has
10 protons
10 electrons
10 protons and 10 electrons
10 neutrons
16
The atomic weight of an atom is calculated by adding
neutrons and electrons
protons and electrons
protons
protons and neutrons
17
if the atomic weight is 10 and the atomic number is 2 then
the atom has 10 protons and 8 electrons
the atom has 2 protons and 8 electrons
the atom has 2 protons and 8 neutrons
the atom has 2 neutrons and 8 electrons
18
If the atomic number is 4 and the atomic weight is 6 then.....
the atom has 2 protons and 4 neutrons
the atom has 6 protons and 6 neutrons
the atom has 4 protons and 4 neutrons
the atom has 4 protons and 2 neutrons
19
A mixture is
a mix of different things
a group of elements
a group of compounds
two or more substances not chemically combined
20
which of the following is NOT an element
chloroform
gold
nitrogen
hydrogen
