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Atoms and Periodic table

Authored by MICHELLE MATHISON

Chemistry, Science

9th - 12th Grade

Used 7+ times

Atoms and Periodic table
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54 questions

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1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

What is the Mass Number of an atom with 30 protons, 40 neutrons.

40

70

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

The center of an atom is called the __________

Nucleus

Valance

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

What Greek philosopher suggested that the universe was made of invisible units called atoms

Democritus

Fransisco

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

A nucleus of an atom contains what two parts?

Protons and Neutrons

Neutrons and Electrons

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

What are the elements called in Groups 3-12 of the periodic table?

Alkai Metals

Transitional Metals

Noble Gases

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Isotopes of an element have different number of ___________ and therefore have different masses.

Proton

Neutron

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Electron in the outermost energy level are called?

Valence Electron

Valence Proton

Valence Neutron

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