SPS1 EOC Review Periodic Table & Atomic Structure

Which of the following subatomic particles, found in the nucleus of an atom, carries a positive electric charge?

• Proton

• Neutron

• Electron

• Photon

Fill in the blank: The nucleus of an atom is composed of ______ and ______, which are responsible for its mass and charge.

• protons and neutrons

• electrons and protons

• neutrons and electrons

• protons and electrons

Tags

NGSS.MS-PS1-1

Which subatomic particle orbits the nucleus in electron shells?

• Proton

• Neutron

• Electron

• Nucleus

Atomic number (Z) is defined as the number of ______ in the nucleus.

• protons

• neutrons

• electrons

• quarks

In atomic physics, the mass number (A) of an atom is defined as the sum of which two subatomic particles?

• protons and neutrons

• protons and electrons

• neutrons and electrons

• electrons and positrons

Atomic mass is the weighted average of all isotopes of an element.

• True

• False

What is the arrangement of electrons in an atom called?

• Atomic number

• Electron configuration

• Mass number

• Isotope

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Atoms are neutral particles because the number of ______ equals the number of ______.

• protons, electrons

• neutrons, protons

• electrons, neutrons

• protons, neutrons

Cations are ions that have:

• Gained electrons

• Lost electrons

• Gained protons

• Lost neutrons

Anions are ions that have:

• Gained electrons

• Lost electrons

• Gained protons

• Lost neutrons