Regents Chemistry Atomic Theory Quiz

In an atom, an orbital represents

• the most probably location of a proton

• the most probable location of an electron

• the least probably location of a neutron

• photons emitted as electrons move to lower energy levels

Which particle has a mass so small, it is considered to be 0 amu?

• proton

• hydrogen nucleus

• neutron

• electron

During a flame test, sodium chloride produces an intense yellow flame. This yellow color is produced when electrons in excited atoms

• are gained by the atoms

• are lost by the atoms

• move to higher energy states within the atoms

• move to lower energy states within the atoms

Tags

NGSS.HS-PS1-2

What quantity is the same among atoms of the same element?

• mass number

• atomic number

• number of neutrons

• number of nucleons

An atom that has 8 protons and 10 neutrons is an isotope of the element

• nitrogen

• oxygen

• fluorine

• neon

Tags

NGSS.HS-PS1-8

Subatomic particles with a negative charge

• Electrons

• Neutrons

• Protons

• Quarks

Tags

NGSS.HS-PS2-4

subatomic particles found on the outermost electron shell

• neutrons

• valence electrons

• isotopes

• ions

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

A weighted average of all of the isotopes of that element, in which the mass and relative abundance of each isotope is taken into account.

• Subatomic Particles

• Atomic Number

• Atomic Mass

• Gluons

Subatomic particles that are neutral in charge

• Neutrons
• Protons
• Nucleus 
• Electrons

Which one of the following is the correct order of scientific contribution of the atom?

• Chadwick, Dalton, Bohr, Rutherford, Democritus,Thomson

• Thomson, Democritus,Rutherford, Bohr, Dalton ,Chadwick

• Dalton, Chadwick ,Bohr, Rutherford, Democritus,Thomson

• Democritus, Dalton, Thomson, Rutherford, Bohr, Chadwick