Structure of Atom-2

Structure of Atom-2

1st - 12th Grade

10 Qs

quiz-placeholder

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Structure of Atom-2

Structure of Atom-2

Assessment

Quiz

Chemistry

1st - 12th Grade

Hard

Created by

NORRIZAWATI Moe

Used 4+ times

FREE Resource

10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

An element has the symbol 235X.

92

What does the number 235 represent?

The mass in gram of the atom.

The number of protons in the atom.

The number of neutrons in the atom.

The total number of protons and neutrons in the atom.

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

The boiling point of pentane is 36oC. Which of the following statements is true about the molecules of pentane at 40oC?

The pentane molecules become lighter.

The kinetic energy of the pentane molecules is lower.

The distance between pentane molecules increases.

The attraction force of the pentane molecules becomes stronger.

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

Four balloons are filled with four different gases.

Which balloon will decrease in size most slowly?

A

B

C

D

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Which of the following statements is true about butane molecules when it is cooled to a temperature of –140oC?

(Melting point of butane is –138oC and its boiling point is –1oC).

The butane molecules remain static.

The butane molecules move randomly.

The butane molecules are arranged closely together.

The distance between the butane molecules increases.

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Which of the following particles contain 10 electrons, 11 protons and 12 neutrons?

19F-

9

20Ne

10

23Na+

11

24Mg2+

12

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

An element 73X has

three valence electrons

a positively charged ion.

3 protons and 7 neutrons.

is located in Group 17 of the Periodic Table.

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

W and Z

X and Y

V and Y

V and X

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