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WorksheetsPS chapter 16 atoms
Total questions: 62
Worksheet time: 56mins
Which two elements are in the same period?
K and Na
Sn and Au
Ne and C
He and Rn
Which element would have properties similar to Calcium?
Magnesium
Gold
Potassium
Boron
The _______________ are found on the left side of the periodic table.
metalloids
metals
nonmetals
Which of the following is composed of more than one element?
silver
copper
chlorine
salt
How many electrons does Iron have?
26
55.845
29
0
Protons have a ____________ charge.
negative
neutral
positive
quark
How many electrons are in the outermost energy level of an atom of Phosphorus?
2
15
1
5
How many neutrons are in an atom of Sodium if it has a mass number of 23?
11
23
22.9
12
Atoms that have the same number of protons but different numbers of neutrons are called ___________.
atoms
isotopes
electron cloud
quarks
The atomic number of an element ______________________.
equals the number of neutrons
equals the number of protons
equals the mass number
is always a decimal
Which of the following elements is a nonmetal?
Ba
Mg
Br
Tc
All carbon atoms have ___________________.
6 protons
8 neutrons
8 protons
12 neutrons
Which of the following atoms has four valence electrons?
fluorine
titanium
beryllium
silicon
What is the atomic number of Boron-11?
10
5
11
10.81
Which type of element is a poor conductor of electricity?
nonmetal
metal
metalloid
What is the mass number of an atom with 16 protons, 16 electrons, and 20 neutrons?
32
16
36
52
How many protons does cobalt have?
59
6
29
27
Which of the following is a compound?
CO2
Co
F
Mg
The nucleus of an atom contains _______________.
protons
neutrons
electrons and protons
neutrons and protons
What is the atomic mass of mercury?
88
200.59
160
80
The smallest particle of an element that retains it's properties is an _____________________?
Compound
Atom
Chemical
Element
If a neutral atom has 3 electrons, how many protons does it have?
1
2
4
3
What is the mass number?
the number of protons
the sum of protons and neutrons
the number of neutrons
the sum of protons and electrons
What is the atomic mass of "F"
9
28
17
19
The central region of an atom where its neutrons and protons are is its
nucleus
electron cloud
core
center
An atom with atomic number 6 would have how many protons
6
12
3
cannot be determined
What are the 3 subatomic particles that make-up the atom?
protons, neutrons, and isotopes
neutrons, isotopes, and electrons
positives, negatives, and electrons
protons, neutrons, and electrons
What quantities vary between isotopes of an element?
protons, electrons, and atomic mass
protons, electrons, and atomic number
neutrons and electrons
neutrons and mass
Which is true about the mass of subatomic particles
electrons have very very little mass (basically none)
neutron have no mass
electrons have a mass of 1 amu
protons have no mass
Which is true about the mass of subatomic particles
electrons have a mass of 1 amu
neutron have no mass
protons and neutrons each have a mass of 1 amu
protons have no mass
Valence electrons are the number of
protons in the atom
electrons in the atom
protons + neutrons in the nucleus
electrons in the outside shell of the atom
This could be the dot diagram of
Mg
Cl
C
O
This is a correct dot diagram for neon (Ne)
true
false
This is a correct dot diagram for neon (Ne)
true
false
Which of these is incorrect?
This could be the dot diagram of an element with the atomic number
8
31
19
36
This could be the dot diagram of an element with the atomic number
8
31
19
36
What is the goal of the Lewis Dot Structure?
To determine the electron position.
To show the element's valence electrons & bonding capabilities.
To find the atomic mass of an element.
To search for the number of electrons in an individual atom.
What is the goal of the Lewis Dot Structure?
To determine the electron position.
To show the element's valence electrons & bonding capabilities.
To find the atomic mass of an element.
To search for the number of electrons in an individual atom.
