Sub Atomic Particles

According to the worksheet yesterday, what is the BEST ESTIMATE for the number of elements on our planet?

• 50

• 75

• 100

• 200

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NGSS.MS-PS1-1

Match the following

• Positive

• Best Teacher

• Dr. Bhagan

• Electron

• Electron

• Proton

• Neutral

• Neutron

• Negative

• Not found in nucleus

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NGSS.MS-PS1-1

What is the atomic number of Sodium

• 11

• 22

• 22.98977

• 23

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NGSS.MS-PS1-1

How many PROTONS does a sodium atom have in its nucleus?

• 11

• 0

• 23

• 23 - 11 = 12

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NGSS.MS-PS1-1

How many electrons does a sodium atom have in its nucleus?

• 11

• 0

• 23

• 23 - 11 = 12

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How many neutrons does a sodium atom have in its nucleus?

• 11

• 0

• 23

• 23 - 11 = 12

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NGSS.MS-PS1-1

According to our worksheet, what makes the atoms of one element different from atoms of another element?

• The phase, solid, liquid or gas

• The chemical reactions of the elements

• The demure placement in the periodic table

• The number of protons in the nucleus

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NGSS.MS-PS1-1

What element has the following:

0 = Atomic mass - Atomic Number

• The very radioactive Uranium

• Helium which has a density much less than AIR

• Zerontonium

• Hydrogen

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NGSS.MS-PS1-1

The Periodic Table is ordered by?

• Increasing Number of Protons

• Increasing Atomic Mass

• Increasing Atomic Reactivity

• Increasing density

Match the Fluorine characteristics

• Number of protons

• 18.998

• Number of neutrons

• 10

• Symbol

• F

• Isotopes

• 9

• 0

• Number of Electrons in the nucleus

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NGSS.MS-PS1-1