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Test Description: Matter - elements, atoms, compounds, and the periodic table. REVIEW
Instructions: Answer all questions to get your test result.
1) The parts that make up an atom are:
A
neutrons, protons and electrons
B
protons and neutrons only
C
a nucleus and protons
D
a nucleus and neutrons
2) the nucleus of an atoms is composed of
A
protons and neutrons
B
electrons
C
electrons and protons
D
neutrons and electrons
3) An element is matter that is made up of:
A
atoms that have bonded together
B
several types of chemicals
C
different compounds
D
one type of atom
4) How are two elements different?
A
they have the same atomic weight but a different number of electrons
B
they have the same protons but a different number of electrons
C
atoms are not different.
D
they are both atoms but have different numbers of protons
5) Elements can be represented by...
A
a symbol
B
all of the above
C
an atomic number
6) What is a compound?
A
a solution - like salt and water mixed together
B
two or more different atoms bonded together
C
a mixture of different materials
D
another way of saying homogenous
7) Compounds can be represented by chemical formulas.
A
This statement is false
B
The formula shows that both sides are not equal.
C
This statement is not true.
D
The formula shows that both sides are equal
8) Mixtures can be seperated into specific groups. What are the names of the groups?
A
Compounds and solution
B
Homogenous, Compounds, Heterogenous
C
Solutions, Homogenous, Heterogenous
D
Heterogenous and Homogenous
9) The part of an atom that has a negative charge is...
A
the nucleus
B
the proton
C
the electron
D
the neutron
10) True of false: Compounds and mixtures are synonyms
A
false
B
true
*select an answer for all questions
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