Chem 2, Semester 1 Review

Front

What is the bond angle in H₂O?

Back

109.5 degrees

Front

What type of alloy is made when the radii of the atoms are similar in size?

Back

Substitutional alloy

Front

In a PES graph, what does a larger binding energy indicate about the electrons?

Back

Electrons are closer to the nucleus.

Front

Isotopes of an element have the same number of __________, but different number of __________.

Back

Protons, neutrons

Front

What type of bond forms between hydrogen and chlorine?

Back

Polar covalent bond

Front

What is the definition of a polar covalent bond?

Back

A bond where electrons are shared unequally between atoms, resulting in partial charges.

Front

What is the difference between ionic and covalent bonds?

Back

Ionic bonds involve the transfer of electrons, while covalent bonds involve the sharing of electrons.

Front

What is the significance of the octet rule in chemistry?

Back

Atoms tend to bond in a way that gives them eight valence electrons, achieving stability.

Front

What is an isotope?

Back

Atoms of the same element with the same number of protons but different numbers of neutrons.

Front

What is the role of valence electrons in chemical bonding?

Back

Valence electrons are involved in forming bonds between atoms.