Modeling Atoms .

What determines the isotope identity of an element?

• Number of protons

• Number of electrons

• Number of neutrons

• Number of atoms

How many protons does a neon atom always have?

• 8

• 10

• 12

• 14

What is the number of electrons in a neutral neon atom?

• 8

• 9

• 10

• 11

Tags

NGSS.HS-PS1-1

Which isotope of neon has 12 neutrons?

• neon-20

• neon-21

• neon-22

• neon-23

How many neutrons does neon-20 have?

• 8

• 9

• 10

• 11

What is the number of protons in neon-21?

• 8

• 9

• 10

• 11

Which of the following statements is true about atoms?

• The number of protons is always different from the number of electrons.

• The number of protons equals the number of electrons in a neutral atom.

• The number of neutrons equals the number of electrons.

• The number of protons is always greater than the number of electrons.

Tags

NGSS.MS-PS1-1

What should a model of an isotope include according to the document?

• Only the number of protons

• Only the number of neutrons

• A key or labels to identify the parts

• Only the number of electrons

Which of the following is NOT a characteristic of a good model of an isotope?

• Showing the subatomic structure

• Including similarities and differences among isotopes

• Accurately representing all characteristics of the subject

• Including a key or labels

How many stable isotopes of neon are shown in the table?

• One

• Two

• Three

• Four