Understanding Atomic Bonds

What is an element in terms of atomic structure?

• A combination of different atoms

• A molecule with multiple atoms

• A compound with various elements

• A single atom type existing alone

What keeps the electron from flying away from the hydrogen atom?

• Repulsion between electron and proton

• Magnetic force

• Attraction between electron and proton

• Gravity

How do hydrogen atoms form a stable molecule?

• By exchanging electrons

• By sharing electrons

• By merging protons

• By sharing protons

What is a structural formula?

• A formula showing the arrangement of atoms

• A formula showing the number of atoms

• A formula showing the charge of atoms

• A formula showing the type of atoms

What does the molecular formula H2 represent?

• Two hydrogen atoms bonded together

• A single hydrogen atom

• Two hydrogen atoms separated

• A hydrogen atom with two protons

What is the significance of a subscript in a molecular formula?

• It shows the number of atoms bonded

• It indicates the charge of the atom

• It denotes the type of bond

• It represents the atomic mass

Why can't helium atoms bond like hydrogen atoms?

• Helium atoms are too large

• Helium atoms have full electron shells

• Helium atoms have no protons

• Helium atoms are too small

What is the main difference between hydrogen and helium in terms of bonding?

• Helium has more electrons

• Hydrogen can share electrons, helium cannot

• Helium can share electrons, hydrogen cannot

• Hydrogen has more protons

What is the term for atoms that exist as single atoms?

• Monatomic

• Polyatomic

• Triatomic

• Diatomic

Why is helium referred to as a noble gas?

• It is highly reactive

• It is a heavy gas

• It has a full outer electron shell

• It forms bonds easily