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Chemistry 1st 9wks Part 2

Authored by Destiny Pounds

Chemistry

12th Grade

Used 2+ times

Chemistry 1st 9wks Part 2
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44 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 5 pts

What did Bohr's atomic theory model look like?

A ring with gold foil in the middle.

Electrons orbiting the nucleus like the planets around the sun.

A cloud of electrons floating around the nucleus.

A scoop of chocolate chip ice cream. It had electrons scattered within a ball of positive charge.

2.

MULTIPLE CHOICE QUESTION

30 sec • 5 pts

What did Rutherford discover about atoms?

An atom is always negatively charged.

An atom is mostly empty space, but has a dense positively charged center(nucleus).

An atom is always positively charged.

All particles will pass straight through gold foil with no change in path.

3.

MULTIPLE CHOICE QUESTION

30 sec • 5 pts

What is a positively charged particle?

neutron

electron

proton

atom

4.

MULTIPLE CHOICE QUESTION

30 sec • 5 pts

What is a negatively charged particle?

neutron

electron

proton

atom

5.

MULTIPLE CHOICE QUESTION

30 sec • 5 pts

What is a particle with no charge?

neutron

electron

proton

atom

6.

MULTIPLE CHOICE QUESTION

30 sec • 5 pts

If oxygen-16 has 8 protons, then how many neutrons does it have?

9

16

8

7

7.

MULTIPLE CHOICE QUESTION

30 sec • 5 pts

How do you know how many electrons an atom has if you know how many protons it has?

You add them together to equal the atomic number.

There is no way of knowing

You add as many electrons as you need to get to the mass number.

There must be an equal amount of protons and electrons.

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