Mattayom 6 Assessment

Select the subatomic particle with a positive charge

• Proton

• Neutron

• Electron

• Atomic mass

Select the subatomic particle with a neutral charge

• Quark

• Electron

• Neutron

• Proton

Select the subatomic particle with a negative charge

• Proton

• Photon

• Neutron

• Electron

What is the smallest particle of matter?

• Molecules

• Cells

• Atom

• Element

Select the subatomic particle found in the nucleus and have a zero charge.

• Proton

• Neutron

• Electron

• Atomic mass

In an atom, the number of protons is equal to the number of ____________.

• neutrons and protons

• Neutrons

• Electrons

• Electrons and Neutrons

What does the nucleus of an atom contain?

• Neutron and Electron

• Proton and Neutron

• Electron

• Proton and Electron

What does atomic mass means?

• Number of protons

• Number of neutrons + electrons

• Number of protons + neutrons

• 
  Number of protons + electrons

Atoms are _____________________ because the number of protons equals the number of electrons.

• electrically positive

• electrically neutral

• 
  electrically negative

• none of the above

The force holds atoms together in chemical compounds or to form molecules.

• Atomic mass

• Atomic bond

• Chemical Bond

• Electronic configuration