Atomic Structure Review

What is the role of valence electrons in chemical bonding?

• Valence electrons are involved in forming bonds between atoms.

• Valence electrons are responsible for the color of compounds.

• Valence electrons determine the mass of an atom.

• Valence electrons are only found in noble gases.

What are neutrons?

• Negatively charged particles found in the nucleus of an atom.

• Neutral particles found in the nucleus of an atom.

• Positively charged particles that orbit the nucleus.

• Particles that are found outside the nucleus of an atom.

What are electrons?

• Negatively charged particles that orbit the nucleus of an atom.

• Positively charged particles found in the nucleus of an atom.

• Neutral particles that float freely in space.

• Particles that have no charge and are found in the electron cloud.

What are protons?

• Negatively charged particles found in the nucleus of an atom.

• Positively charged particles found in the nucleus of an atom.

• Neutral particles found in the nucleus of an atom.

• Positively charged particles found in the electron cloud.

What is the difference between cations and anions?

• Cations are negatively charged ions, while anions are positively charged ions.

• Cations are neutral ions, while anions are charged ions.

• Cations are positively charged ions, while anions are negatively charged ions.

• Cations and anions are both positively charged ions.

What is the significance of the atomic mass?

• It is the total number of protons in an atom.

• It is the weighted average mass of an element's isotopes.

• It represents the number of electrons in an atom.

• It indicates the reactivity of an element.

How do you determine the number of neutrons in an atom?

• Add the atomic number to the atomic mass.

• Subtract the atomic number from the atomic mass.

• Multiply the atomic number by the atomic mass.

• Divide the atomic mass by the atomic number.

What is an ion?

• An atom that has gained or lost one or more electrons, resulting in a charge.

• A molecule that has a fixed number of protons and neutrons.

• A particle that is always neutral and does not carry any charge.

• An atom that is always positively charged.

When will the overall charge of an atom be positive?

• When there are more protons than electrons.

• When there are more electrons than protons.

• When the number of protons and electrons is equal.

• When there are equal numbers of neutrons and protons.

What does the group number indicate about an element?

• It tells us how many protons are in the nucleus of an element.

• It tells us how many electrons are in the most outer shell of an element.

• It indicates the atomic mass of the element.

• It shows the number of isotopes of the element.