Physical Science Chapter 4 Review

Who conducted the gold foil experiment?

The shape of an s orbital is a dumbbell

An atom has 5 protons, 5 electrons, and 6 neutrons. Its mass number is

Avogadro's number is 6.02 x 10²³

The region in an atom where there is a high probability of finding electrons is an orbital.

A particle that orbits the nucleus is an

Who developed the atomic theory?

Most of the mass of an atom is found in its

What is the molar mass of CO₂?

An electron jumps to a new energy level when

Carbon-13 and Carbon-14 have a different number of

How many quarks have scientists confirmed the existence of?

The number of ____ in an atom never changes.

Who conducted the Cathode Ray experiment?

Molar mass is defined as the mass in grams of one mole of a substance.

The closer the energy level is to the nucleus, the higher its energy.

A mole is an SI base unit that describes the

Atoms of the same element with different numbers of neutrons are called

Which of the following is not a type of orbital?

Particles of matter that make up protons and neutrons are

What do we call the electrons in the outermost energy level?

Neutrons are found in the electron cloud of the atom.

Which of these statements is not part of Dalton's atomic theory?

An amu is an atomic mass unit.

The number of energy levels filled in an atom is determined by protons.

How many energy levels are there?

Avogadro's number is defined as the number of particles in one mole of a substance.

How many moles are in 75 g of sulfur?