Chemistry Mid-Term Review

Front

0.57 mL = ___________ L

Back

0.00057

Front

What is the mass of this atom?

Back

19

Front

How did Rutherford describe the nucleus?

Back

Tiny, Dense, Positively Charged, all of the above

Front

What is the number of protons that the element in this image contain?

Back

7

Front

Rutherford's 'gold-foil' experiment using alpha particle scattering concluded that

Back

most of the atom is empty

Front

What is the atomic number of an element?

Back

The number of protons in the nucleus of an atom.

Front

What is the significance of the atomic mass unit (amu)?

Back

It is a standard unit of mass that quantifies mass on an atomic or molecular scale.

Front

Define isotopes.

Back

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

Front

What is the principle of conservation of mass?

Back

In a chemical reaction, mass is neither created nor destroyed.

Front

What is a covalent bond?

Back

A chemical bond formed by the sharing of electron pairs between atoms.