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WorksheetsChemistry Mid Term
Total questions: 66
Worksheet time: 2hrs 12mins
The vertical columns in the periodic table are known as
Groups
Elements
No name
Periods
What did Mendeleev predict about the missing elements in the periodic table?
Their atomic weights
Their properties
Their reactivity
Their names
What did Mendeleev think about the existence of atoms?
He believed in atoms
He denied the existence of atoms
He was unsure about atoms
He thought atoms were mystical
What did Mendeleev's periodic table help future chemists understand?
The existence of atoms
The properties of elements that hadn't been discovered yet
The structure of the universe
The importance of organized religions
Which group of elements were not on Mendeleev's original Periodic table because they are not unstable?
Noble gases
Transition metals
Alkaline earth metals
Halogens
What is the main characteristic of transition metals?
They are extremely reactive
They are good conductors of electricity
They form negative ions
They are nonmetals
Who is the creator of the periodic table of elements?
Hank Green
Dmitri Mendeleev
De Chancourtois
Michael Aranda
What trend is observed in atomic size as you move down a group in the periodic table?
Atomic size decreases due to increased nuclear charge.
Atomic size remains constant across the group.
Atomic size increases due to the addition of electron shells.
Atomic size fluctuates without a clear trend.
What are the vertical columns in the periodic table called?
Rows
Groups
Periods
Blocks
What did Mendeleev use to arrange the elements in his periodic table?
By their atomic mass
By their atomic number
By their chemical reactivity
By their state of matter
What is the definition of an isotope?
Atoms with the same number of protons but different numbers of neutrons
Atoms with different numbers of protons and electrons
Atoms with the same number of neutrons but different numbers of protons
Atoms with the same number of protons and neutrons
What is the horizontal row in the periodic table called?
Group
Family
Period
Block
Which statement best describes the arrangement of elements in the modern periodic table?
Elements are arranged in order of increasing atomic mass
Elements are arranged in order of increasing atomic number
Elements are arranged alphabetically
Elements are arranged by color
If an element is located in Group 1 and Period 3 of the periodic table, which element is it?
Sodium (Na)
Potassium (K)
Lithium (Li)
Magnesium (Mg)
Which of the following statements explains why isotopes of the same element have similar chemical properties?
They have the same number of neutrons
They have the same number of protons and electrons
They have the same atomic mass
They have different numbers of protons
An unknown element is found to have properties similar to those of magnesium and calcium. Using your knowledge of periodic table groups, predict which group this element most likely belongs to.
Group 1 (Alkali metals)
Group 2 (Alkaline earth metals)
Group 17 (Halogens)
Group 18 (Noble gases)
what group number are the halogens
18
1
2
17
what group number are the noble gases
17
18
14
15
What is the name of group number 1?
halogens
noble gases
alkali metals
alkaline earth metals
What group number are the halogens found?
18 (8A)
1
2
17 (7A)
Periodic law states that the elements are arranged according to their atomic ________ so that elements with similar chemical properties are in the same ________ and properties repeat periodically.
numbers, rows
masses, rows
masses, column
numbers, column
Which element is found in group 2, period 6?
Oxygen (O)
Barium (Ba)
Selenium (Se)
Carbon (C)
Which halogen is found in period 4?
Krypton (Kr)
Xenon (Xe)
Bromine (Br)
Iodine (I)
Which element has similar chemical properties as sodium but has 7 energy levels?
Francium (Fr)
Cesium (Cs)
Rubidium (Rb)
Potassium (K)
Which group on the periodic table contains elements that are all gases at room temperature?
Group 17
Group 1
Group 2
Group 18
Which element is located in period 3, group 1 of the periodic table?
Sodium (Na)
Calcium (Ca)
Potassium (K)
Magnesium (Mg)
Which element is a noble gas found in period 2?
Xenon (Xe)
Neon (Ne)
Argon (Ar)
Krypton (Kr)
Which group contains elements that are highly reactive nonmetals?
Group 2
Group 18
Group 17
Group 1
Which element is found in group 1, period 4 of the periodic table?
Potassium (K)
Calcium (Ca)
Sodium (Na)
Magnesium (Mg)
What is the name given to the vertical columns on the periodic table?
Groups
Periods
Blocks
Rows
Which group on the periodic table contains elements that are all nonmetals?
Group 1
Group 3
Group 17
Group 2
Which noble gas has 18 protons?
Helium
Hydrogen
Argon
Calcium
Group 17 is known as the
Halogens
Noble Gases
Alkaline Earth Metals
Alkali Metals
Elements that share common traits of both metals and non-metals are referred to as
metals
non-metals
halogens
metalloids
Which element is found in group 17 and is the most reactive non-metal?
Chlorine
Argon
Fluorine
Magnesium
Which metalloid has an atomic number of 32?
Antimony
Calcium
Bromine
Germanium
Calcium is a
metal
non-metal
metalloid
Boron is a
metal
non-metal
metalloid
Chlorine is a
metal
non-metal
metalloid
Matter is made of particles to small to be seen. These particles are called
nano particles
black space
atoms
A, B, or C.
Gold atoms have the Chemical Symbol
G
Au
Go
Gold atoms do not have a Chemical Symbol.
An Atom is the smallest particle of an Element, and is made up of
tiny particles of electrons.
protons, neutrons, and futons.
Protons
Protons, Neutrons, and Electrons.
a subatomic particle, contained in the nucleus of an atom, having the same mass as a proton but no electrical charge
proton
neutron
electron
matter
The vertical columns in the periodic table are known as
Groups
Elements
No name
Periods
What did Mendeleev predict about the missing elements in the periodic table?
Their atomic weights
Their properties
Their reactivity
Their names
What did Mendeleev think about the existence of atoms?
He believed in atoms
He denied the existence of atoms
He was unsure about atoms
He thought atoms were mystical
What did Mendeleev's periodic table help future chemists understand?
The existence of atoms
The properties of elements that hadn't been discovered yet
The structure of the universe
The importance of organized religions
Which group of elements were not on Mendeleev's original Periodic table because they are not unstable?
Noble gases
Transition metals
Alkaline earth metals
Halogens
What is the main characteristic of transition metals?
They are extremely reactive
They are good conductors of electricity
They form negative ions
They are nonmetals
Who is the creator of the periodic table of elements?
Hank Green
Dmitri Mendeleev
De Chancourtois
Michael Aranda
What trend is observed in atomic size as you move down a group in the periodic table?
Atomic size decreases due to increased nuclear charge.
Atomic size remains constant across the group.
Atomic size increases due to the addition of electron shells.
Atomic size fluctuates without a clear trend.
What are the vertical columns in the periodic table called?
Rows
Groups
Periods
Blocks
What did Mendeleev use to arrange the elements in his periodic table?
By their atomic mass
By their atomic number
By their chemical reactivity
By their state of matter
What is the definition of an isotope?
Atoms with the same number of protons but different numbers of neutrons
Atoms with different numbers of protons and electrons
Atoms with the same number of neutrons but different numbers of protons
Atoms with the same number of protons and neutrons
What is the horizontal row in the periodic table called?
Group
Family
Period
Block
Which statement best describes the arrangement of elements in the modern periodic table?
Elements are arranged in order of increasing atomic mass
Elements are arranged in order of increasing atomic number
Elements are arranged alphabetically
Elements are arranged by color
If an element is located in Group 1 and Period 3 of the periodic table, which element is it?
Sodium (Na)
Potassium (K)
Lithium (Li)
Magnesium (Mg)
Which of the following statements explains why isotopes of the same element have similar chemical properties?
They have the same number of neutrons
They have the same number of protons and electrons
They have the same atomic mass
They have different numbers of protons
An unknown element is found to have properties similar to those of magnesium and calcium. Using your knowledge of periodic table groups, predict which group this element most likely belongs to.
Group 1 (Alkali metals)
Group 2 (Alkaline earth metals)
Group 17 (Halogens)
Group 18 (Noble gases)
