Chemistry Review Question Preview (ID: 44219)


Grade 7 Periodic Table/chemistry Review. TEACHERS: click here for quick copy question ID numbers.

How do you find the number of protons in an atom?
a) atomic number
b) atomic mass
c) atomic mass - atomic number
d) guess

How do you find the number of neutrons in an atom?
a) atomic number
b) atomic mass
c) atomic mass - atomic number
d) guess

How many electrons fit in the first shell?
a) 8
b) 10
c) 1
d) 2

How many electrons fit in the second shell?
a) 8
b) 10
c) 2
d) 18

What is the name of element with symbol Fe?
a) magnesium
b) Fenetium
c) Silver
d) Iron

An element in group 1 always has
a) 1 electron shell
b) 1 proton
c) 1 valence electron
d) 1 atom

NaCl is an example of a
a) element
b) compound
c) mixture
d) gas

Sodium has one valence electron and 3 electron shells. To achieve a full shell, it will:
a) donate one electron
b) receive 7 electrons
c) donate 7 electrons
d) receive one electron

Helium, Neon, Argon and Krypton are all examples of
a) compounds
b) mixtures
c) Halogens
d) noble gases

The element Gold has symbol
a) Ag
b) Au
c) Go
d) GoLd

The element potassium has symbol
a) P
b) K
c) Po
d) Ko

What is the name of the positively charged subatomic particle
a) proton
b) neutron
c) electron
d) positivitytron

What is the name of the negatively charged subatomic particle?
a) electron
b) proton
c) neutron
d) negativitytron

Neutrons have what kind of charge?
a) positive
b) negative
c) neutral
d) a big one

if an atom has a neutral charge, it means that protons and _______ are equal
a) neutrons
b) electrons
c) electron shells
d) valence electrons

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