Modeling Atoms .

Front

What determines the isotope identity of an element?

Back

Number of neutrons

Front

How many protons does a neon atom always have?

Back

10

Front

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

Back

10

Front

Which isotope of neon has 12 neutrons? Options: neon-20, neon-21, neon-22, neon-23

Back

neon-22

Front

How many neutrons does neon-20 have?

Back

10

Front

Number of protons in neon-21?

Back

10

Front

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.

Back

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

Front

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

Back

A key or labels to identify the parts

Front

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

Back

Accurately representing all characteristics of the subject

Front

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

Back

Three