Atoms & Molecules

Which is true?

• “Atom” and “molecule” mean the same thing.

• Molecules are made of atoms.

• Atoms are made of molecules.

What is the difference between ionic and covalent bonds?

• Ionic bonds shares electrons and covalent bonds take the electron completely.

• Covalent bonds shares electrons and Ionic bonds take the electron completely.

What is A?

• Proton

• Neutron

• Electron

• Nucleus

What is B?

• Proton

• Neurton

• Electron

• Nucleus

What is C?

• Proton

• Neutron

• Electron

• Nucleus

What makes up the nucleus of an atom?

• Protons and Neutrons

• Protons and Electrons

• Neutrons and Electrons

• Only Neutrons

When an ion is taken from another element through ionic bonding, is it now a positive or negative ion?

• Positive

• Negative

When an electron is gained through ionic bonding, is the atom for positive or negative?

• Positive

• Negative

How do the number or protons, number of neutrons and the mass number relate to each other?

• Mass number is the same as number of protons

• Mass number is the addition of protons and neutrons

• Number of protons is the mass number plus the number of neutrons

• Number of neutrons is the mass number plus the number of protons

How are atomic number and number of protons related to each other?

• Atomic number equals the number of protons

• Atomic number is protons plus neutrons

• Number of protons is the mass number plus the number of neutrons

• Number of neutrons is the mass number plus the number of protons