WorksheetsReview for Unit 1 Quiz #2: Subatomic Particles, PT Organization
Total questions: 32
Worksheet time: 37mins
There are equal numbers of ___ and ___ in an atom (if it's neutral)
protons and neutrons
protons and electrons
neutrons and electrons
Which two particles are in the nucleus of an atom?
protons and electrons
electrons and neutrons
protons and neutrons
Which subatomic particles contribute the most to the mass of an atom?
Protons, Neutrons, Electrons
Electrons only
Protons and Electrons
Protons and Neutrons
An atom with atomic number 6 would have how many protons?
6
12
3
cannot be determined
Atoms of the same element which have a different number of neutrons are called _________________.
ions
isotopes
quarks
molecules
How many electrons are in an atom with an atomic number of 50?
5
8
50
2
ALL atoms of the same element have:
same number of protons
same number of nucleons
different number of neutrons
different number of electrons
If a bromine atom has 35 protons, but 36 electrons, what is its net charge?
(a)
If a strontium atom has 38 protons with 36 electrons, what is its net charge?
(a)
Check all that apply: the vertical columns on the periodic table are called:
periods
elements
groups
families
The horizontal rows on the periodic table are called:
periods
elements
groups
matter
Which group does Lithium (Li) belong to?
1A
2A
8A
7A
Which group are the Alkali Metals in?
1A
2A
7A
8A
Which group are the Halogens in?
1A
2A
7A
8A
Which group are the Noble Gases in?
1A
2A
7A
8A
Which properties are characteristic of the Group 1 metals?
high reactivity
low reactivity
Which nonmetal family is very reactive?
alkaline earth metals
alkali metals
noble gases
halogens
Argon (Ar) is a(n):
alkali metal
alkaline earth metal
halogen
noble gas
Which of the following is an inert gas?
Hydrogen
Helium
Oxygen
Carbon dioxide
Elements of the same group have similar chemical properties
False
True
Not enough information
May be true
Iodine is a nonmetal. What is one property of iodine?
conductivity
dull appearance
malleability
ductility
What are two properties that make a metal a good choice to use as wire in electronics?
conductivity, malleability
ductility, conductivity
luster, malleability
malleability, high density
What was the "genius" of Mendeleev's periodic table?
it was the first periodic table ever created
he was able to predict properties of yet discovered elements
he discovered electrons
he explained how atoms were found
What is unique about noble gases?
Conduct heat well
Conduct electricity well
They are unreactive
They are very reactive
