Atomic Structure, States of Matter, and Chemical Bonding

What is the charge of a proton?

• Zero

• Negative

• Positive

• Neutral

What is the charge of an electron?

• -1.6 x 10^-20 C

• -1.6 x 10^-19 C

• -1.6 x 10^-17 C

• -1.6 x 10^-18 C

What is the charge of a neutron?

• Positive

• Neutral

• Charged

• Negative

What is the atomic number of an element?

• The atomic number of an element is the number of protons and neutrons combined.

• The atomic number of an element is a unique identifier for that element and is typically denoted by the letter Z.

• The atomic number of an element is always a prime number.

• The atomic number of an element is determined by its mass.

What is the mass number of an element?

• Total number of electrons

• Total number of protons

• Total number of isotopes

• Total number of protons + total number of neutrons

What are the three states of matter?

• solid, liquid, gas

• vapor

• solidus

• plasma

What is the difference between an element and a compound?

• An element consists of two or more types of atoms, whereas a compound consists of only one type of atom.

• An element and a compound are the same thing.

• An element is a mixture of different atoms, whereas a compound is made up of the same type of atom.

• An element consists of only one type of atom, whereas a compound consists of two or more different types of atoms bonded together.

What is an isotope?

• Atoms of the same element with different numbers of neutrons.

• Molecules with varying atomic numbers

• Atoms with different numbers of electrons

• Different elements with the same number of neutrons

What are intermolecular forces?

• Forces that exist only in solids

• Forces that are not affected by distance between particles

• Forces between particles within the same molecule

• Forces of attraction or repulsion between neighboring particles.

What is the difference between ionic and covalent bonding?

• Ionic bonding involves the transfer of electrons, while covalent bonding involves the sharing of electrons.

• Ionic bonding involves the transfer of protons, while covalent bonding involves the transfer of electrons.

• Ionic bonding involves the sharing of protons, while covalent bonding involves the sharing of electrons.

• Ionic bonding involves the sharing of electrons, while covalent bonding involves the transfer of electrons.