Introduction to Chemical Bonding

What does the periodic table tell us about atoms?

• Atomic mass only
• Number of neutrons
• Electron configuration, valence electrons, and properties
• Color of the element

Elements in the same group have the same number of electron shells.

• True
• False

What is a chemical bond?

• The energy inside the nucleus
• A force of attraction holding atoms together
• The repulsion between protons and electrons
• None of the above

The octet rule means atoms tend to:

• Have 4 protons
• Gain, lose, or share electrons to achieve 8 in the valence shell
• Always remain neutral
• Share neutrons

Which bond involves the transfer of electrons?

• Ionic bond
• Covalent bond
• Metallic bond
• Hydrogen bond

Which type of atoms usually give away electrons?

• Metals
• Non-metals
• Noble gases
• Metalloids

What do we call negatively charged ions?

• Cations
• Anions
• Isotopes
• Protons

Valence electrons are located in the innermost shell.

• True
• False

What does it mean if a covalent bond is polar?

Fill in the blank: Ionic bond = ________ of electrons (metal + non-metal)