Ions and Atomic Structure Concepts

What type of ion is formed when an atom gains electrons?

• Cation

• Anion

• Proton

• Neutron

What are ions?

• Electrically neutral atoms

• Atoms with equal protons and electrons

• Electrically charged species from atoms that lost or gained electrons

• Atoms with more protons than electrons

What is the condition for an atom to be electrically neutral?

• More protons than electrons

• More electrons than protons

• Equal number of protons and electrons

• No protons or electrons

What is the result when a neutral atom loses electrons?

• It becomes an anion

• It becomes a cation

• It becomes a neutron

• It becomes a proton

In the ionization process, what is lost from the atom?

• Proton

• Neutron

• Electron

• Nucleus

What is the initial charge of a sodium atom before ionization?

• Positive

• Negative

• Neutral

• Double positive

What is the atomic number of magnesium?

• 10

• 11

• 12

• 13

What is the atomic number of magnesium (Mg)?

• 10

• 12

• 14

• 16

What is the electron configuration of Mg²⁺?

• 1s² 2s² 2p⁶

• 1s² 2s² 2p⁴

• 1s² 2s² 2p⁵

• 1s² 2s² 2p³

What happens to an atom when it gains electrons?

• It becomes a cation

• It becomes an anion

• It becomes neutral

• It loses protons