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WorksheetsATOMS AND BONDING REVIEW
Total questions: 43
Worksheet time: 32mins
Based on the contributions of early scientists, one can conclude that one discovery was ___________________.
One scientist made more significant contributions than others.
Hundreds of years passed between discoveries.
People did not think about the atom after 1913.
One discovery was important for another.
If an atom gains an electron, then the atom will become _____________________.
a positive ion.
a negative ion.
a neutral atom.
an isotope.
An atom has 6 protons, 6 electrons, and 8 neutrons. What is the mass of the atom? ____________
6 amu
8 amu
12 amu
14 amu
If you were to model an atom using the solar system, what would the sun represent? _______________________
an ion
a nucleus
a neutron
an electron
If an atom is neutral, it has an equal number of ________________________ and ______________________________.
electrons and neutrons.
protons and neutrons.
protons and electrons.
protons, neutrons, and electrons.
An atom has two main parts, they are the ________________________ and the _____________________ . Inside the nucleus you will find the __________________________ and ___________________________ and orbiting around the nucleus you will find the ________________________________.
nucleus, shells, protons, neutrons, electrons
protons, electrons, nucleus, shells
electrons, neutrons, protons, shells
neutrons, protons, shells, electrons
Most of the mass of the atom is found in the ____________________________.
electrons
protons
neutrons
nucleus
Neutrons are found in the _____________________________ and they have a _____________________________ charge.
nucleus, positive
nucleus, no
shell, no
shell, negative
In the following process, Na --> Na+ what has taken place?
loss of a proton
gain of a proton
loss of an electron
gain of an electron
1. In a negatively charged ion, you have more ______________________ than _______________________________.
a heavier nucleus.
a greater atomic mass.
more electrons than protons.
more electrons than neutrons.
How does the mass and size of an atom compare to the mass and size of the nucleus?
The masses are similar, but the nucleus is much smaller.
The volumes are similar, but the nucleus has much less mass.
The masses are similar, but the nucleus is much larger.
The volumes are similar, but the nucleus has much more mass.
What is the mass of an oxygen atom that has 8 protons, 10 neutrons, and 8 electrons?
8 amu
10 amu
16 amu
18 amu
If an ion has 3 more electrons than it does protons, then it has a charge of ___________.
mass of +3.
mass of –3.
charge of +3.
charge of –3.
Manganese has an atomic number of 25 and a mass of 55. How many particles are in the nucleus?
25
30
55
80
An atom of Boron has 5 protons, 5 electrons, and 6 neutrons. What is the mass of the atom?
5
6
10
11
The alkali earth metals are all in the same group because they all have _________ valence electrons.
one
two
seven
eight
Use the periodic table to find the following information for Oxygen: the atomic number is __________________, the atomic mass is ________________________, and the chemical symbol is _______________________.
16, 8, O
8, 16, O
16, 8, Ox
8, 16, Ox
The smallest particle of an element that still retains the properties of the element is an ________________________.
electron
proton
neutron
atom
Which statement best describes an atom?
Atoms are the smallest particles of matter that are still elements.
Atoms are composed of one or more elements in a fixed ratio.
Atoms are broken down by physical means into subatomic particles.
Atoms are tiny energy packets that produce a beam of light.
Potassium (K) is in the same group as what elements?
Ne.
Mg.
Ca.
Na.
Which set has similar bonding properties?
Cl, Br, and F
K, Ca, and Sc
Kr, Cl, and O
Be, C, and O
Using the periodic table, which statement is true?
Oxygen (O) has more protons than chlorine (Cl).
iron (Fe) has more protons than silver (Ag).
Sodium (Na) has more protons than carbon (C).
Hydrogen (H) has more protons than helium (He).
On the periodic table, the Noble Gases are in which group?
1 (1A)
2 (2A)
17 (7A)
18 (8A)
Which of these is an element.
sugar
helium
oxygen
table salt
carbon dioxide
Two atoms of Oxygen chemically bound together are called an Oxygen _____________________________.
molecule
compound
solution
mixture
Which are compounds?
graphite C
quartz SiO2
calcite CaCO2
hematite . Fe2O3
When a sodium atom gives an electron to a chlorine atom, what happens to the sodium atom?
The mass of the atom increases.
The atom becomes an isotope.
The atomic number decreases.
The atom becomes a positive ion.
The two oxygen atoms that make up oxygen gas (O2) share what type of bond?
share two covalent bonds.
have a definite shape.
share a pair of neutrons.
have two free electrons.
An isotope is two atoms of the same element that have different number of .....
electrons.
neutrons.
positrons.
protons.
When Oxygen and Hydrogen combine, what substance is formed? (hint H2O)
water
vinegar
hydrochloric acid
hydrogen dioxide
What does the circled part of the diagram show?
an atom
an ion
one molecule
an electron
How many types of elements are found in the following formula? 3Na2C2O4.
2
12
3
4
The chemical formula for rust is Fe2O3. What two elements combine to form rust?
iron and water
iron and oxygen
iron and air
iron and acid
What compound is formed when sodium and chlorine combine chemically?
sugar
table salt
sulfuric acid
sodium hydroxide
How many elements are found in the formula Ca(NO3)2?
3
4
5
6
How many elements are in the chemical formula FeC5O5?
5
11
3
10
What are the element name that are in the compound Na2C2O4?
Carbon, Oxygen, Nitrogen
Calcium, Oxygen, Sodium
Cobalt, Nutrogen, Oxygen
Carbon, Sodium, Oxygen
The potassium, K , atom is most similar to what elements?
Calcium, Magnesium
Cesium, Barium
Lithium, Sulfur
Hydrogen, Sodium
What metal group is the most reactive?
Alkali metals
Alkaline Earth metals
Boron Group
Transition metals
What non-metal group is the most reactive?
Carbon group
Nitrogen group
Halogen group
Noble Gases group
What is the chemical symbol for iron?
Fe
I
Ir
Pb
What is the chemical symbol for magnesium?
Ma
Mg
Mn
Mu
What is the chemical symbol for copper?
C
Co
Cp
Cu
