The Structure of the Atom

Question 1

What is the charge on an electron?

Revolt · Accepted Answer

–1

Question 2

An atom contains one proton, one electron, and one neutron. Which two particles are most similar in mass?

Revolt · Accepted Answer

the proton and the neutron

Question 3

The table below gives the atomic mass and relative abundance values for the three isotopes of element M.Relative abundance (%)Atomic mass (amu)78.9923.985010.0024.985811.0125.9826What is the average atomic mass (in amu) of element M?

Revolt · Accepted Answer

24.30

Question 4

The diagram below shows some subatomic particles.What is the particle that is labeled with a question mark (?) in the diagram?

Revolt · Accepted Answer

quark

Question 5

Which two particles are found in the nucleus of an atom?

Revolt · Accepted Answer

protons and neutrons

Question 6

The mass number of Fe2+ is 56. How many neutrons are there in a single Fe2+ atom?

Revolt · Accepted Answer

30

Question 7

The table below gives the numbers of protons, electrons, and neutrons in four atoms.AtomNumber of protonsNumber of neutronsNumber of electrons198929983991049109Based on the table, which atom has a charge of –1?

Revolt · Accepted Answer

3

Question 8

A nitride ion has 7 protons, 8 neutrons, and 10 electrons. What is the overall charge on this ion?

Revolt · Accepted Answer

–3

Question 9

Which statement describes an electron?

Revolt · Accepted Answer

It has a negative charge and is located in orbitals around the nucleus.

Question 10

A lithium atom has three protons, three neutrons, and three electrons. What is the overall charge on this atom?

Revolt · Accepted Answer

0

The Structure of the Atom Answers

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