electronic structure of atoms

Located in nucleus holds the other particles from repelling one another

• Proton

• Neutron

• Electron

• Alpha particle

Subatomic particle with a negative charge, has very little mass compared to other particles

• Proton

• Neutron

• Electron

• Alpha Particle

Subatomic particle with positive charge identifies the atom

• Proton

• Neutron

• Electron

• Alpha Particle

Atomic mass is equal to the number of protons plus _______.

• Protons

• Neutrons

• Electrons

• Alpha particles

As electronegativity increases, atoms from left to right in a period on the periodic table __________ in atomic radius.

• Increase

• Decrease

• Stays the same

• Fluctuates

An atom with high ionization energy has 7 valence electrons, when this atom gains an electron, it becomes a __________ ion.

• Positive

• Negative

• Neutral

• Covalent

When two nonmetals share electrons equally due to their similar electronegativities, they form a(n) _________ bond

• Ionic

• Covalent

• Polar covalent

• Hydrogen

Which statement is true about the ground state and the excited state of an electron?

• The ground state is the highest energy level of an electron.
• The excited state is the lowest energy level of an electron.
• The ground state is the lowest energy level of an electron.
• When an electron goes from the ground state to an excited state it releases light energy.

For an electron to change from ground state to an excited stated it must...

• Absorb energy
• Release energy

True or False: Electrons can exist in between energy levels.

• TRUE
• FALSE