Question

periodic table basics practice
mark all that are correct about the electromagnetic force
☐ electrons attract protons
☐ electrons repel protons
☐ a nucleus repels protons
☐ a nucleus attracts protons
☐ a nucleus attracts electrons
☐ a nucleus repels protons
☐ an anion repels a cation
☐ an anion attracts a cation

Explanation:

• Electrons (negative) attract protons (positive) due to opposite charges.
• Nucleus has protons (positive), so protons in nucleus repel other protons (same charge), and nucleus (positive) attracts electrons (negative).
• Anions are negative, cations positive, so they attract.

Answer:

• Electrons attract protons
• A nucleus repels protons
• A nucleus attracts electrons
• An anion attracts a cation