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8th Science 8.5ABC & 6.6A

Authored by Clifton Rubin

Science

8th Grade

NGSS covered

Used 24+ times

8th Science 8.5ABC & 6.6A
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15 questions

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1.

MULTIPLE CHOICE QUESTION

1 min • 5 pts

Valence electrons are the...

Innermost electrons
Middle electrons
Outermost electrons
Any electrons

2.

MULTIPLE CHOICE QUESTION

1 min • 5 pts

What determines the reactivity of an element?

Size of its nucleus
Number of total electrons
Number of valence electrons
Number of shells

3.

MULTIPLE CHOICE QUESTION

30 sec • 5 pts

What subatomic particle identify an element ?

electrons

protons

neutrons

ions

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

Which students responses are correct?

Student 1

Student 2

Student 3

Student 4

Tags

NGSS.MS-PS1-1

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

Based on the information in the table, which conclusion about the chemical reactivity of these elements is valid?

Boron is the most reactive because it has the most protons.

Fluorine is the most reactive because it has 7 electrons in the outer shell.

Silicon is the most reactive because it has an equal number of protons and neutrons.

Gallium is the most reactive because it has many more neutrons than protons.

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

A student is studying the ways different elements are similar to one another. Diagrams of atoms from four different elements are shown in the image.


Which two atoms are of elements in the same group in the periodic table?

Atom 1 and Atom 2

Atom 1 and Atom 4

Atom 2 and Atom 3

Atom 3 and Atom 4

Tags

NGSS.MS-PS1-1

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Which two elements on the periodic table are in the same period?

Sn and Rb

F and Cl

K and Ba

Se and Te

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