What is the atomic number?

the number of protons in the nucleus

the number of protons and neutrons in the nucleus

the number of neutrons in the nucleus

the number of protons in the energy levels

In order for an atom to be neutral what has to be true?

The atom has the same number of protons and electrons

The atom has more protons than neutrons

The atom has more neutrons than protons

The atom has the same number of protons and neutrons

How is the number of neutrons in the nucleus of an atom calculated?

Subtract the number of p+ from the mass number

Add the number of e- and p+ together

Subtract the number of e- from p+

Add the mass number to the number of e-

What are valence electrons?

The number of electrons in the outermost shell

The total number of electrons in an atom

The number of electrons in the second shell

The number of protons in the outermost shell

Which of the following best describes an electron?

It has a negative charge and much less mass than a proton

It has no charge and about the same mass as a proton

It has a positive charge and much more mass than a neutron

It has a negative charge and about the same mass as a neutron

The majority of an atom's mass exists where?

In the space between the nucleus and the electrons

Which is the correct order of the atomic model?

Dalton, Thomson, Rutherford, Bohr, Schrodinger

Rutherford, Dalton, Bohr, Thomson, Schrodinger

Dalton, Rutherford, Thomson, Bohr, Schrodinger

Schrodinger, Rutherford, Thomson, Dalton, Bohr

same number of protons different number of neutrons

same number of neutrons different number of protons

same number of protons different number of electons

same number of electrons different number of protons

Atomic theory and Atomic structure test

Authored by A Santn

Physics

9th - 11th Grade

NGSS covered

Used 57+ times

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MULTIPLE CHOICE QUESTION

30 sec • 1 pt

subatomic particles found on the outermost shell & responsible for the atom's reactivity

neutrons

valence electrons

isotopes

ions

Subatomic particles with a positive charge

neutrons

atomic mass

protons

isotopes

Measure mainly of the nuclear particles: protons + neutrons

Subatomic Particles

Atomic Number

Atomic Mass

Gluons

Subatomic particles that are neutral in charge

Neutrons

Protons

Nucleus

Electrons

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Atoms of the same element with a different number of neutrons

Ion

Gluons

Isotope

Quarks

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Discovered the electron within the atom

Thomson

Chadwick

Schrodinger & Heisenberg

Dalton

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

an element will always have the same number of

neutrons

protons

isotopes

atoms

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Atomic theory and Atomic structure test

subatomic particles found on the outermost shell & responsible for the atom's reactivity

Subatomic particles with a positive charge

Measure mainly of the nuclear particles: protons + neutrons

Subatomic particles that are neutral in charge

Atoms of the same element with a different number of neutrons

Discovered the electron within the atom

an element will always have the same number of

An atom has 10 protons and a mass of 18. It has __ neutrons

The number 16 for the atomic element sulfur is the

The name of this particle means indivisible and it is the building block of matter

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