ETA Reviewer

ETA Reviewer

8th Grade

33 Qs

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ETA Reviewer

ETA Reviewer

Assessment

Quiz

Chemistry

8th Grade

Medium

NGSS
HS-PS1-8, HS-PS1-1, MS-PS1-1

+1

Standards-aligned

Used 34+ times

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33 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

The technetium-99 isotope has a half-life of 6.0 hours. If 100.0 mg were injected into a patient how much remains after 18 hours?

33.0 mg

12.5 mg

.33 mg

15.8 mg

2.

MULTIPLE CHOICE QUESTION

5 sec • 12 pts

Media Image

In a correctly written symbol what would be located in the "A" position?

number of neutrons
atomic number
number of electrons 
mass number

3.

MULTIPLE CHOICE QUESTION

10 sec • 1 pt

Media Image

How many protons are in this atom?

3

4

6

10

4.

MULTIPLE CHOICE QUESTION

10 sec • 1 pt

Media Image

What is the name of the pictured isotope?

Copper-29

Copper-63

Copper-34

Copper-43

5.

MULTIPLE CHOICE QUESTION

10 sec • 1 pt

Rubidium-87 with atomic number of 37 gives off a beta particle. What will be the resulting isotope?

Br-85 with atomic number of 35

Strontium-87 with atomic number of 38

Yttrium-87 with atomic number of 39

Kr-87 with atomic number of 36

6.

MULTIPLE CHOICE QUESTION

10 sec • 1 pt

Media Image

These three isotopes of carbon have different -

Atomic numbers

Mass numbers

Numbers of protons

Symbols

7.

MULTIPLE CHOICE QUESTION

10 sec • 1 pt

Media Image

How many neutrons are in this isotope of Uranium?

235
92
327
143

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