Atoms Quiz

What development led to the realization that Dalton's atomic model was too simple?

• scientists discovered all matter made up of atoms

• scientists found smaller positive and negative particles in atom

• scientists found atoms made of smaller particles called cells

• scientists discover electrons orbit inside the nucleus

Rutherford ran an experiment where he found

• atoms are made up of a lot of empty space

• electrons have a negative charge

• a dense area in the center of atom has a negative charge

• positive and negative charges are mixed together

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NGSS.MS-PS1-1

Which part of an atom is the proton?

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NGSS.MS-PS1-1

What part of an atom has a negative charge?

• proton

• neutron

• electron

• all are negative

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NGSS.MS-PS2-3

All matter is composed of atoms.

• True

• False

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NGSS.MS-PS1-1

Match the following scientists to their atom model.

• Thomson

• 
• Dalton

• 
• Rutherford

• 
• Schrodinger

• 
• Bohr

• 

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NGSS.MS-PS1-1

What is an element?

• the smallest part of an atom

• made up of one kind of atom and cannot be broken down to a simpler substance

• made up of many different atoms all with a different number of protons

• made up of protons and neutron but no electrons

If an atom gains an electron, we call it a ​ (a)   . But if an atom gains a neutron, then we call it a ​ (b)   .

• ion
• isotope
• neutral atom
• inversion

If an atom gains an electron, what charge will the atom have?

• a negative charge

• a positive charge

• it will be neutral

• nothing will change

How many protons will an atom of Beryllium have?

• 4

• 9

• 5

• 13

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NGSS.MS-PS1-1