Atoms & Periodic Table Qs

Front

Solid, liquid, and gas are three states of matter. Which of the following correctly pairs a state of matter and its description? gas – particles that do not move about freely, liquid – particles that are the closest together of all three states, solid – vibrating particles that are fixed in place, gas – slowest-moving particles of all three states

Back

solid – vibrating particles that are fixed in place

Front

Why is the nucleus of an atom so dense?

Back

The nucleus contains all of the subatomic particles that have significant mass.

Front

How many electrons are found in the atom illustrated?

Back

7

Front

How many neutrons are in a carbon atom with a mass number of 13 and six protons?

Back

7

Front

Which two subatomic particles make up the nucleus of an atom? Options: proton and electron, neutron and proton, electron and neutron, ion and proton

Back

neutron and proton

Front

What would happen to an atom if it were to lose one electron?

Back

The atom would then have a positive charge.

Front

What is the net charge of the nucleus of a calcium atom with an atomic number of 20?

Back

+20

Front

What can you conclude about the mass of an electron based on the fact that it takes more than 1,800 electrons to equal the mass of one proton?

Back

An electron’s mass is extremely small compared to a proton’s mass.

Front

The diameter of an atom is about 100,000 times greater than the diameter of its nucleus. What can you conclude from this fact?

Back

Most of the volume of an atom is found in its electron cloud.

Front

While Elisa and Carmen were studying together for science class, Elisa created a drawing of an atom. Elisa decided to test Carmen’s knowledge of subatomic particles by asking her to fill in the missing label in her drawing. Which of the following should Carmen choose for the missing label? Options: element, neutron, electron cloud, isotope

Back

neutron