9th grade science quiz study

What charge does a proton have

• Positive

• negative

• 50/50

• neutral

Draw the Bohr model

Answer explanation

Why were neutrons discovered later than protons and neutrons

• They did not have the technology

• They were much smaller

• There was no electrical charge

• Neutrons are not important enough to discover

What is the charge of a neutron?

• Positive

• Negative

• Neutral

• Depends on the atom

What is the charge of an electron?

• Positive

• Negative

• Neutral

• 50/50

Tags

CCSS.6.NS.C.5

CCSS.6.NS.C.6

Who discovered the neutron?

• Ernest Rutherford

• James Chadwick

• Albert Einstein

• Marie Curie

True or False- The plum pudding model thought that there are positively charger electrons embedded in a negative charged area

• True

• False

What are the types of ions? (Select all the apply)

• Cation

• isotope

• orion

• anion

what is the atomic number of sodium

• 22.990

• 11

• 23

• 22

Who first made a model about the nucleus

• Niels bohr

• John Dalton

• Earnest rutherford

• JJ Thomson