Chemistry Review Question Preview (ID: 35845)


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Which element is a poor conductor of heat?
a) Ca
b) Cu
c) Al
d) Ar

What do the elements S,N,P and BR have in common?
a) They are noble gases
b) They are nonmetals
c) They have same thermal conductivity
d) They have the same number of protons

Arsenic,a poison, has an atomic number of 33. It is classified as a-
a) metal
b) non-metal
c) metalloid
d) actinide

Bromine in group 17 is not accurately described as...
a) liquid, reddish brown in color
b) very reactive
c) malleable, ductile
d) mass 79.904

How many valence electrons does carbon have?
a) 1
b) 2
c) 3
d) 4

How can you find elements with chemical properties similar to other elements?
a) atomic number
b) period number
c) group number
d) no number

What does the atomic number tell you?
a) number of protons
b) number of electrons
c) element identity
d) all choices correct

What do the periods tell you?
a) energy levels
b) reactivity
c) metal classification
d) neutron number

mass of the atom is located where?
a) electron cloud
b) 2nd energy level
c) nucleus
d) center

what determines reactivity?
a) Protons
b) electrons
c) neutrons
d) valence electrons

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