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WorksheetsUnit 2- Atomic Structure and Periodic Table
Total questions: 39
Worksheet time: 29mins
In an atom that is neutral, there will always be the same number of
protons and neutrons
protons and electrons
electrons and neutrons
In nucleus of an atom of helium there are _____ protons and ______ neutrons surrounded by ______ electrons.
1, 2, 2
2, 2, 2
2, 4, 2
2, 2, 4
Which part of the atom cannot have its location accurately determined and is modeled by a cloud around the center of the atom?
electron
neutron
nucleus
proton
An atom of the element ____________has an average atomic mass of about 19 amu.
oxygen
sulfer
nitrogen
flourine
Which is an example of an element?
salt (NaCl)
water (H2O)
silver (Ag)
electron (e-)
Which of the following diagrams is the correct model for the element beryllium?
A
B
C
D
Which of the following diagrams is the correct model for the element nitrogen?
A
B
C
D
Which of the following diagrams is the correct model for the element lithium?
A
B
C
D
Which of the following diagrams is the correct model for the element neon?
A
B
C
D
Where is the mass of an atom located?
electron cloud
protons
neutrons
nucleus
What subatomic particles are found in the nucleus of an atom?
electrons and protons
electrons and neutrons
protons and neutrons
Using the periodic table, which element listed behaves MOST like sodium (Na)?
S
Si
Mg
Rb
All the elements of a family in the periodic table have what feature in common?
They all have similar chemical properties.
They all have the same number of protons in the nucleus.
They are all located in the same horizontal row or period.
They all have the same number of electrons in the electron cloud.
The element boron has an atomic number of 6 and a mass number of 11. How many protons, electrons, and neutrons does one atom contain?
6p+, 6e-, 5n0
6p+, 5e-, 5n0
6p+, 5e-, 6n0
6p+, 6e-, 11n0
Which part of the diagram represents the proton?
A
B
C
D
Which part of the diagram represents the electron?
A
B
C
D
Which part of the diagram represents the neutron?
A
B
C
D
Which part of the diagram represents the nucleus?
A
B
C
D
An atom with an atomic number of 19 and a mass number of 39 can be best described by which of these
An atom that contains 19 protons and 20 neutrons
An atom that contains 19 protons and 20 electrons
An atom that contains 19 protons and 39 neutrons
An atom that contains 20 protons and 19 neutrons
What is the family name of Group 1 on the periodic table?
Alkali Metals
Alkaline Earth Metals
Transition Metals
Nobel Gases
What is the family name of Group 2 on the periodic table?
Alkali Metals
Alkaline Earth Metals
Transition Metals
Nobel Gases
What is the family name of Group 3-12 on the periodic table?
Alkali Metals
Alkaline Earth Metals
Transition Metals
Nobel Gases
What is the family name of Group 18 on the periodic table?
Alkali Metals
Alkaline Earth Metals
Transition Metals
Nobel Gases
Which type of element on the periodic table is found on the left side (majority of table)?
metals
nonmetals
metalloid
Which type of element on the periodic table is found on the staircase?
metals
nonmetals
metalloid
Which type of element on the periodic table is found on the right side?
metals
nonmetals
metalloid
Most elements on the periodic table are
gases
metals
nonmetals
rare earth elements
What does the number 131.293 represent in the image?
the atomic number of xenon
the number of protons in xenon
the number of electrons in xenon
the average atomic mass of xenon
The elements from this section of the periodic table all belong to the same
family
group
period
valence
Examine the block from the periodic table for the element carbon, chemical symbol C. Using your knowledge of the periodic table, which of these statements is correct about carbon?
All carbon atoms have 6 protons.
The mass number of carbon is 21.
All carbon atoms have 12 protons.
A carbon atom has more protons than a nitrogen anion.
What is the number of protons in an atom of chlorine?
17
35.453
36
18
Use your periodic table to identify the atom shown.
aluminum (Al)
potassium (K)
magnesium (Mg)
carbon (C)
What is the atomic mass of the modeled atom?
12
13
14
24
Order these elements from GREATEST to LEAST atomic mass.
Li, He, N, S
N, He, S, Li
He, Li, N, S
S, N, Li, He
Chlorine has a nucleus composed of protons and neutrons. Given the data, how many neutrons are in a typical chlorine nucleus?
17
35.453
36
18
Helium, neon, and argon are examples of
metals
metalloids
nobel gases
transition metals
Which physical properties describe metals?
dull, poor conductors, brittle
shiny, good conductors, malleable (flattens), ductile (wire), high melting point
shiny, semiconductors
Which physical properties describe nonmetals?
dull, poor conductors, brittle, some solids, gases, low melting point
shiny, good conductors, malleable (flattens), ductile (wire), high melting point, all solids except one
shiny, semiconductors
Consider the element carbon. How many electrons can be found in a carbon atom? How many are valence electrons?
17, 7
17, 17
35, 17
17, 35
