Which of the following statements best describes the nucleus of an atom?

It is positively charged and contains protons and neutrons.

It is negatively charged and contains electrons.

It is neutrally charged and contains only neutrons.

It is a cloud of electrons surrounding the atom.

If an element is located in the same group as Sodium (Na) on the periodic table, it will likely...?

Have similar chemical properties to Sodium.

Have a different number of valence electrons.

Be located on the right side of the periodic table.

How does an increase in heat energy affect the particles of a liquid?

They speed up and move farther apart.

They slow down and become more tightly packed.

Which of the following is NOT a part of the atomic theory?

Atoms are indivisible and indestructible.

Atoms of different elements are different.

Atoms combine in simple whole-number ratios to form compounds.

How does the arrangement of particles in a liquid differ from that in a solid?

Particles in a liquid can move past each other.

Particles in a liquid are more tightly packed.

Particles in a liquid vibrate in a fixed position.

Particles in a liquid have a definite shape.

What is the significance of the "staircase" line on the periodic table?

It separates metals from nonmetals.

It shows the transition metals.

How does the number of protons in an atom determine its identity?

It determines the element the atom belongs to.

It determines the atom's charge.

Which of the following correctly describes a property of an atom?

It has an equal number of protons and electrons.

It has more protons than neutrons.

It has a negative or positive charge.

It has an equal number of neutrons and electrons.

Which of the following statements regarding the periodic table of elements is true?

All elements on the periodic table are made up of the same fundamental particles: protons, neutrons and electrons.

The periodic table does not list all of the known elements in the universe.

The properties of elements can be predicted by their positions in the periodic table, but their bonding patterns cannot be predicted.

All nonliving things consist of elements on the periodic table; all living things consist of things that are not listed on the periodic table.

In the modern periodic table, which of the following describes atoms with similar chemical behavior and properties?

They are located in the same group.

They have similar atomic masses.

They are located in the same period.

They have the same number of isotopes.

Which of the following statements about atoms is TRUE?

They are arranged in the periodic table according to number of protons.

They are the same for all elements.

They are both stable and nonradioactive.

They are made up of protons and electrons in a nucleus surrounded by orbiting neutrons.

A scientist observes that a substance changes shape when poured but maintains a constant volume. What can be concluded about the state of matter and particle behavior of this substance?

It's a liquid; particles can move past each other but maintain proximity

It's a solid; particles are tightly packed and vibrate in place

It's a gas; particles move randomly and quickly in all directions

It's a plasma; particles are ionized and highly energetic

How would you explain the relationship between heat energy and the states of matter to a younger student using a real-world analogy?

Relate it to crowd behavior: orderly line (solid), moving crowd (liquid), dispersed individuals (gas)

Compare it to different types of sports: individual (solid), team (liquid), and chaotic (gas)

Liken it to different forms of transportation: car (solid), boat (liquid), airplane (gas)

Compare it to different types of music: classical (solid), jazz (liquid), rock (gas)

How has the atomic theory evolved over time? Which statement best reflects this progression?

It has become more complex as new subatomic particles were discovered

It has simplified as scientists eliminated unnecessary components

It has remained largely unchanged since ancient Greek times

It has shifted focus from the nucleus to the electron cloud

A new element is discovered. How would you determine its place in the periodic table?

Count the number of protons in its nucleus

Determine its melting and boiling points

Observe its reactivity with other known elements

How would you explain the concept of electron shells to a group of students using a real-world analogy?

Liken them to the floors of a building with different capacities

Compare them to the layers of an onion

Relate them to nested Russian dolls of increasing size

Compare them to the orbits of planets around the sun

What was John Dalton's major contribution to atomic theory?

He combined Greek ideas with scientific evidence to create the first modern atomic theory.

He proposed that electrons orbit the nucleus in energy levels.

According to Dalton's atomic theory, what is true about atoms of the same element?

They are different from each other.

They can be divided into smaller particles.

What did Thomson's experiment prove about atoms?

Atoms are the smallest particles in the universe.

Atoms have a dense, positive center.

What did Rutherford expect to happen in his gold foil experiment?

All alpha particles would pass straight through the foil.

All alpha particles would bounce back.

All alpha particles would be absorbed by the foil.

The alpha particles would turn into electrons.

What did Rutherford discover about the atom as a result of his experiment?

Atoms have a dense, positively charged nucleus.

What did Rutherford's experiment reveal about the atom's structure?

It has electrons in the nucleus.

What did Bohr suggest about electron orbits?

They are in specific energy levels.

How do electrons move between energy levels according to Bohr?

By absorbing or releasing energy.

By changing the shape of the nucleus.

What phenomenon did Bohr's model help explain?

The colors of light emitted by heated atoms.

The process of nuclear fission.

What happened to some of the alpha particles in Rutherford's experiment?

They bounced back at large angles.

They passed through the foil without changing direction.

They were absorbed by the foil.

What was a key difference between Democritus's idea of the atom and Dalton's?

Dalton had experimental evidence.

Democritus had experimental evidence.

Democritus's atoms could combine.

Dalton's atoms were indivisible.

Atoms & Elements (8.P.8.5)

8th Grade

•

74 Qs

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Atoms & Elements (8.P.8.5)

Quiz

•

Science

•

8th Grade

•

Practice Problem

•

Medium

•

NGSS

MS-PS1-4, MS-PS1-1, HS-PS1-8

Standards-aligned

Ed Lyons

Used 8+ times

FREE Resource

74 questions

Show all answers

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What causes the differences in particle motion between solids, liquids, and gases?

Changes in pressure

Differences in heat energy

Variations in mass

Alterations in chemical composition

In a solid, how do the particles move?

Freely and randomly

Past each other

Vibrate in a fixed position

They don't move

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Where are electrons located in an atom?

In the nucleus

In electron clouds/shells surrounding the nucleus

Randomly throughout the atom

Only in the center of the atom

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following is an example of a compound?

Oxygen (O₂)

Gold (Au)

Water (H₂O)

Nitrogen (N₂)

How are elements organized in the periodic table?

By their size

By their color

By their atomic number and properties

By their state of matter

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What are the horizontal rows in the periodic table called?

Groups

Columns

Periods

Families

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Elements in the same group have similar chemical properties because they have the same number of...?

Protons

Neutrons

Electrons

Valence electrons

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Atoms & Elements (8.P.8.5)

74 questions

What causes the differences in particle motion between solids, liquids, and gases?

In a solid, how do the particles move?

Where are electrons located in an atom?

Which of the following is an example of a compound?

How are elements organized in the periodic table?

What are the horizontal rows in the periodic table called?

Elements in the same group have similar chemical properties because they have the same number of...?

Which of the following is a property of metals?

Where are nonmetals located on the periodic table?

Metalloids have properties of...?

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