Intro to Atoms

What type of electric charge does a proton have?

• positive

• neutral

• negative

• magnetic

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NGSS.MS-PS2-3

What makes up all matter in the universe?

• gravity

• atoms

• magnetic fields

• star dust

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What makes up the total mass of an atom?

• neutrons and electrons

• protons and electrons

• neutrons and protons

• protons only

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Where are the electrons located at on an atom?

• outside the galaxy

• inside the protons

• inside the nucleus

• outside the nucleus

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How many electrons are in a neutral atom that has 7 protons?

• 0 electrons

• at least 1 electron

• 7 electrons

• 14 electrons

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What type of electric charge does an electron have?

• positive

• negative

• neutral

• electromagnetic

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NGSS.MS-PS2-3

If you have 5 protons, 5 neutrons, and 5 electrons, what is the mass of the atom?

• 5 amu

• 10 amu

• 15 amu

• 0 amu

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The word ATOM is derived from the Greek word ATOMOS which means?

• Unseeable

• Undercover

• Uncuttable

• Unidentified

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What are the 2 major parts of an atom?

• Head and tail

• Nucleus and orbitals

• Back and front

• Inside and outside

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Why do we make models of atoms

• Because they are too large to seen properly

• Because they are too far away for us to see clearly

• Because they are too dangerous to be handled safely

• Because they are too small to be seen

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