Structure of Atom Quiz

What is the smallest particle of an element that retains its chemical properties?

• ion

• atom

• molecule

• compound

What are the three subatomic particles that make up an atom?

• protons, electrons, and quarks

• protons, neutrons, and electrons

• electrons, photons, and neutrinos

• protons, neutrons, and positrons

Which subatomic particle has a positive charge?

• electron

• neutron

• proton

• photon

Which subatomic particle has a negative charge?

• electron

• positron

• neutron

• proton

What is the overall charge of an atom?

• positive

• negative

• neutral

• zero

What is the atomic number of an element?

• The atomic number of an element is the number of protons in the nucleus of an atom.

• The atomic number of an element is the number of neutrons in the nucleus of an atom.

• The atomic number of an element is the number of electrons in the nucleus of an atom.

• The atomic number of an element is the number of protons and neutrons in the nucleus of an atom.

What is the mass number of an element?

• Incorrect option 3

• Incorrect option 2

• Incorrect option 1

• Correct answer for the question

Answer explanation

The mass number of an element refers to the total number of protons and neutrons in its nucleus. It helps identify the element and determine its atomic mass. In this question, the correct answer is 'Correct answer for the question.' This option correctly represents the mass number of the element. The other options are incorrect and do not provide the accurate mass number. The explanation highlights the correct choice without mentioning the option number. The question asks about the mass number of an element, not the query.

Tags

NGSS.MS-PS1-1

What is the electron configuration of an atom?

• The electron configuration of an atom is the total mass of the atom.

• The electron configuration of an atom is a representation of how the electrons are distributed in the atomic orbitals.

• The electron configuration of an atom is the number of protons in the nucleus.

• The electron configuration of an atom is the arrangement of neutrons in the nucleus.

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

What is the nuclear model of an atom?

• A model that describes the structure of an atom as having a large, dense nucleus at the center, which contains protons and neutrons.

• A model that describes the structure of an atom as having a small, dense nucleus at the center, which contains electrons and protons.

• A model that describes the structure of an atom as having a small, dense nucleus at the center, which contains only electrons.

• A model that describes the structure of an atom as having a small, dense nucleus at the center, which contains protons and neutrons.

Tags

NGSS.HS-PS1-8

What are isotopes?

• Different types of atoms with the same number of electrons but different numbers of protons.

• Different types of atoms with the same number of neutrons but different numbers of protons.

• Different types of atoms with the same number of protons and electrons.

• Variants of a particular chemical element with the same number of protons but different numbers of neutrons.