Isotopes

Presentation

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Chemistry, Science

•

8th - 9th Grade

•

Medium

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NGSS

MS-PS1-1

Standards-aligned

Aaishah V

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5 Slides • 6 Questions

Isotopes

Isotopes

atoms with the SAME number of PROTONS but DIFFERENT number of NEUTRONS

Carbon 12

Consider the Atom Carbon, the atomic number tells us the number of protons.

How many protons in Carbon 12?

Multiple Choice

What is the correct definition for isotopes?

atoms with the same number of protons and neutrons

Atoms with the same number of protons but different number of neutrons

Atoms with the same number of neutrons but different number of protons

Atoms with no mass

Multiple Choice

The atomic number indicates the number of neutrons

The atomic number indicates the isotope number

The atomic number indicates the number of protons

The atomic number indicates the number of protons and neutrons

Multiple Choice

If you want to determine the total number of protons and neutrons in an atom, you can refer to the

atomic mass

atomic number

symbol

charge

Lithium isotopes

What do you notice with these 3 isotopes of Lithium?

Multiple Choice

What is the difference between these 3 Lithium isotopes?

no difference

they have the same atomic number

they have the same mass number and atomic number

they have different mass numbers

Fill in the Blanks

atomic number = number of electrons = number of

Type answer...

Fill in the Blanks

mass number = atomic number + number of

Type answer...

The atomic mass of an element is the weighted average of the masses of all its isotopes that occur naturally

Isotopes

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