chem try

Which is the best representative model of an atom?

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• 
• 
• 

What can you conclude from the fact that scientists continue to update the atomic model?

• New information about atoms continues to be discovered
• Old information about atoms is completely useless
• Scientists did not have any information about atoms until a few years ago
• Scientists still have no idea what atoms look like

In the atomic model nicknamed the "plum pudding" model, what do the plums represent?

• the nucleus

• the atom

• the electrons

• the positive material

Tags

NGSS.MS-PS1-1

In the model nicknamed "the solar system model" what are the electrons like?

• the sun

• the nucleus

• the planets

• the moon

Tags

NGSS.HS-PS2-4

True or False: In a neutral atom Protons and Electrons are equal to the atomic number.

• True

• False

Match the following charges to their subatomic particle.

• Neutral

• Neutron

• Positive

• Proton

• Negative

• Electron

Match the subatomic particle to its atomic mass.

Groups:

(a) 1 amu

,

(b) ~0 amu

• proton

• electron

• neutron

True or False: The atomic number of an element is determined by the number of neutrons in its nucleus.

• False

• True

True or False: Electrons are found in the nucleus of an atom.

• True

• False

Changing the number of NEUTRONS changes the ​ (a)   of the atom and its specific ​ (b)   Changing the number of ELECTRONS changes the ​ (c)   of the atom and its specific ​ (d)   Changing the number of ​ PROTONS changes both above and the specific​ (e)  

• atomic mass
• isotope.
• net charge
• ion.
• element.