P7 Science with Staron

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1 point

What did Ernest Rutherford discover?

What the electron was.

An atom was mostly empty space with a positive charged nucleus.

An atom was mostly empty space with a negative charged nucleus.

What the proton was.

1 point

Rows, or periods, in the periodic table go ____.

1 point

What is the atomic number?

Number of protons in an atom.

The number of neutrons in an atom.

Total number of protons and neutrons.

The amount of radioactivity in the element.

1 point

What is .3456 kilograms in grams?

3457

.04567

.0003456

345.6

1 point

Protons have a _____ charge.

Negative charge.

Positive charge.

No charge.

None of the above.

1 point

John Dalton said what?

All matter is made up of atoms.

All of the above.

Came up with the periodic table.

The element of helium has 1 energry level.

1 point

What is an isotope?

Atoms of the same element that have different numbers of neutrons.

The area around the nucleus of an atom.

The combination of neutrons and protons.

None of the above.

1 point

What is the atomic mass?

All of the above.

Total number of neutrons.

Total number of protons and neutrons in an atom.

Total number of isotopes.

1 point

The dependant variable is what you _______.

10.

1 point

Tthe independant variable is what you _______.

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