Diagnostic Chemistry Test

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

• Proton

• Atom

• Molecule

• Ion

Which particle has a negative charge?

• Proton

• Neutron

• Electron

• Nucleus

How is atomic mass calculated?

• Protons + Neutrons

• Electrons + Protons

• Electrons + Neutrons

• Neutrons - Protons

What describes the property of a wave's height from its rest position?

• Amplitude

• Wavelength

• Frequency

• Speed

Tags

NGSS.MS-PS4-1

Which scientist proposed that electrons are found in fixed orbits around the nucleus?

• Dalton

• Rutherford

• Bohr

• Thomson

Ionic compounds are generally formed between:

• Metal and metal

• Nonmetal and nonmetal

• Metal and nonmetal

What is the weakest intermolecular force?

• Hydrogen bonding

• Van der Waals forces

• Ionic forces

• Covalent bonds

Nuclear reactions typically involve changes in the:

• Electrons

• Nucleus

• Valence shell

• Intermolecular forces

Tags

NGSS.HS-PS1-8

In a nuclear fission reaction, a neutron strikes a uranium nucleus, causing it to split into smaller nuclei and release additional neutrons. What is this process called?

• Nuclear fusion

• Chain reaction

• Neutron bombardment

• Beta decay

Tags

NGSS.HS-PS1-8

Which form of radiation has the greatest penetrating power?

• Alpha

• Beta

• Gamma

• X-ray