Semester 1 Exam Review

Front

What atom matches this electron configuration? [Xe] 6s² 4f¹⁴ 5d⁹

Back

Gold

Front

Who discovered that the atom had a small, dense, positively charged center?

Back

Ernest Rutherford

Front

Who named the positive center of the atom the 'nucleus'?

Back

Rutherford

Front

240 cm = ___________ m

Back

2.4

Front

You should only touch the lab equipment ___________

Back

after you have been instructed to

Front

What is the charge of a proton?

Back

Positive

Front

What is the charge of an electron?

Back

Negative

Front

What is the charge of a neutron?

Back

Neutral

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 nucleus in an atom?

Back

It contains protons and neutrons, making up most of the atom's mass.