8 - Unit 1, Section 1 - Day 3

Presentation

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Science

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8th Grade

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Practice Problem

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Medium

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NGSS

MS-ESS1-1, MS-PS1-1, HS-PS1-8

Standards-aligned

Pete Shumate

Used 4+ times

FREE Resource

7 Slides • 5 Questions

Atoms and Elements: A Review

Unit 1, Section 1

Multiple Choice

How many neutrons are in this atom of carbon?

Multiple Choice

An atom has 32 protons and 40 neutrons in its nucleus. What is the element AND what is its mass number?

Germanium; 32

Germanium; 40

Germanium; 72

Zirconium; 72

Think-Pair-Share: Compare and Contrast

19 protons
22 neutrons

Atom 2

19 protons
20 neutrons

Atom 1

Open Ended

Answer the following questions with your partner.

1. Are both atoms the same element?
2. Do both atoms have the same mass number?

Type response here

Isotopes are atoms of the same element, but with different numbers of neutrons
They have:
- The same atomic number
- Different mass numbers
How do we tell them apart?

Isotopes

How To Name Isotopes

"element name" - "mass number"

Multiple Choice

How many neutrons are in an atom of uranium-238?

146

238

Multiple Choice

How many neutrons are in an atom of iridium-192?

115

192

Neutrons make the nucleus stable
They "glue" the protons together
Every atom has a certain isotope that is the most stable

What MAkes EAch Isotope Different?

Classwork

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Submit it in the correct box when you are done

Atoms and Elements: A Review

Unit 1, Section 1

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