Which of the following is NOT a part of Dalton's atomic theory?

All elements are composed of atoms.

Atoms of the same element are identical.

Which of the following is true about subatomic particles?

The mass of a neutron nearly equals the mass of a proton.

Electrons are negatively charged and are the heaviest subatomic particle.

Protons are positively charged and the lightest subatomic particle.

Neutrons have no charge and are the lightest subatomic particle.

neutral, with the number of protons equaling the number of electrons

positively charged, with the number of protons exceeding the number of electrons

negatively charged, with the number of electrons exceeding the number of protons

neutral, with the number of protons equaling the number of electrons, which is equal to the number of neutrons

As a consequence of the discovery of the nucleus by Rutherford, which model of the atom is thought to be true?

Electrons are distributed around the nucleus and occupy almost all the volume of the atom.

Protons, electrons, and neutrons are evenly distributed throughout the volume of the atom.

The nucleus is made of protons, electrons, and neutrons.

The nucleus is made of electrons and protons.

The nucleus of an atom is ____.

the central core and is composed of protons and neutrons

positively charged and has more protons than neutrons

negatively charged and has a high density

negatively charged and has a low density

What does the number 84 in the name krypton-84 represent?

the sum of the protons and electrons

The mass number of an element is equal to ____.

the total number of protons and neutrons in the nucleus

the total number of electrons in the nucleus

less than twice the atomic number

a constant number for the lighter elements

According to the aufbau principle, ____.

electrons enter orbitals of lowest energy first

an orbital may be occupied by only two electrons

electrons in the same orbital must have opposite spins

electrons enter orbitals of highest energy first

What is the electron configuration of potassium?

1s² 2s² 2p⁶ 3s² 3p⁶ 4s¹

1s² 2s² 2p⁶ 3s² 3p⁶ 3d⁶ 4s¹

How does the speed of visible light compare with the speed of gamma rays, when both speeds are measured in a vacuum?

The speed of visible light is greater.

The speed of gamma rays is greater.

No answer can be determined from the information given.

How are the frequency and wavelength of light related?

They are inversely proportional to each other.

Frequency equals wavelength divided by the speed of light.

Wavelength is determined by dividing frequency by the speed of light.

They are directly proportional to each other.

Chemistry Quiz

Authored by Sharon Weeks

Science

10th Grade

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MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The study of chemicals that, in general, do not contain carbon is traditionally called what type of chemistry?

bio

inorganic

physical

analytical

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following is NOT an example of matter?

air

heat

smoke

water vapor

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

A golf ball has more mass than a tennis ball because it ____.

takes up more space

contains more matter

contains different kinds of matter

has a definite composition

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

All of the following are physical properties of matter EXCEPT ____.

mass

color

melting point

ability to rust

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which state of matter has a definite volume and takes the shape of its container?

solid

liquid

gas

both b and c

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following CANNOT be classified as a substance?

table salt

air

nitrogen

gold

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following is a heterogeneous mixture?

air

salt water

steel

soil

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Chemistry Quiz

The study of chemicals that, in general, do not contain carbon is traditionally called what type of chemistry?

Which of the following is NOT an example of matter?

A golf ball has more mass than a tennis ball because it ____.

All of the following are physical properties of matter EXCEPT ____.

Which state of matter has a definite volume and takes the shape of its container?

Which of the following CANNOT be classified as a substance?

Which of the following is a heterogeneous mixture?

Separating a solid from a liquid by evaporating the liquid is called ____.

A substance that can be separated into two or more substances only by a chemical change is a(n) ____.

The chemical symbol for iron is ____.

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