PKS_Atoms & Molecules_Grade_9

PKS_Atoms & Molecules_Grade_9

9th Grade

38 Qs

quiz-placeholder

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PKS_Atoms & Molecules_Grade_9

PKS_Atoms & Molecules_Grade_9

Assessment

Quiz

Chemistry

9th Grade

Medium

Created by

PRABHJOT SAWHNEY

Used 9+ times

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38 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

1. The atomic number of an element X is 13. What will be the number of electrons in its ion X3+?

11

15

16

10

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following represents a correct chemical formula?

CaCl

Na3N

NaSO4

NaS

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

If the number of electrons in an ion X3- is 10., atomic number of element X would be?

7

10

5

8

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

How many carbon atoms are there in a methane molecule? 

0
1
4
5

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the chemical symbol for the element mercury?

Hg

Merc

MeC

MY

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What do you call the 2 in 3CO2?

Coefficient
Subscript
Element
Small

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

Explain the difference between an atom and a molecule.

One molecule is made of one atom.
One molecule is always made of different particles.
One molecule is made of more than one atom.
One molecule is made of more than two atoms.

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