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atomic structure, ions, isotopes

Authored by Sandy Hamilton

Chemistry

10th Grade

NGSS covered

Used 130+ times

atomic structure, ions, isotopes
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25 questions

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1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

The positive particles of an atom are 

electrons 
positrons 
neutrons 
protons 

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

the central region of an atom where its neutrons and protons are is its 

nucleus 
electron cloud
core 
center 

Tags

NGSS.MS-PS1-1

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

What is the mass number?

the number of protons
the sum of the number of protons and the number of neutrons in the nucleus of an atom 
the number of electrons
the number of neutrons

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

an atom with atomic number 6 would have how many protons 

6
12
3
cannot be determined 

Tags

NGSS.MS-PS1-1

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

An atom has an atomic number of 15 and a mass number of 31. How many protons are there in the atom?

15
31
16
47

Tags

NGSS.MS-PS1-1

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

An atom has 5 protons and 7 neutrons. What is the mass number of the atom?

5
7
2
12

Tags

NGSS.MS-PS1-1

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

An atom has an atomic number of 19 and a mass number of 29. How many neutrons are in the atom?

30
19
10
38

Tags

NGSS.MS-PS1-1

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