Question 1

Which of the following is a characteristic of non-metals?

Accepted Answer

They are usually poor conductors of heat and electricity.

Answer

They are malleable and ductile.

Answer

They have high melting points.

Answer

They conduct electricity well.

Question 2

Which of the following compounds is made up of only one type of element?

Accepted Answer

O₂ (oxygen gas)

Answer

CO₂(carbon dioxide)

Answer

NaCl (table salt)

Answer

H₂O (water)

Question 3

What is a common property of metalloids?

Accepted Answer

They have properties of both metals and non-metals.

Answer

They have high electrical conductivity.

Answer

They are all gases at room temperature.

Answer

They are soft and easily bendable.

Question 4

What is the chemical formula for a compound made of sodium and chlorine?

Accepted Answer

NaCl

Answer

Na2Cl

Answer

NaCl2

Answer

NaCl3

Question 5

Which of the following statements is true about metals?

Accepted Answer

They are typically shiny and good conductors of heat.

Answer

They do not conduct electricity.

Answer

They are always solid at room temperature.

Answer

They cannot be shaped or molded.

Question 6

Which of the following is a property of non-metals?

Accepted Answer

They tend to have lower densities compared to metals.

Answer

They are very malleable and can be stretched.

Answer

They have high melting and boiling points.

Answer

They are good conductors of electricity.

Question 7

Which of the following compounds contains both a metal and a non-metal?

Accepted Answer

MgO (magnesium oxide)

Answer

Cl2 (chlorine gas)

Answer

N2 (nitrogen gas)

Answer

Si (silicon)

Question 8

Which of the following statements is true about non-metals?

Accepted Answer

They generally have low melting and boiling points.

Answer

They are good conductors of electricity.

Answer

They have high density.

Answer

They are all solid at room temperature.

Question 9

Which of the following is NOT a characteristic of non-metals?

Accepted Answer

They are generally shiny.

Answer

They have high ionization energies.

Answer

They are mostly poor conductors of heat.

Answer

They tend to gain electrons in reactions.

Question 10

Which of the following elements is a good conductor of electricity?

Accepted Answer

Copper

Answer

Sulfur

Answer

Bromine

Answer

Iodine

Question 11

Which of the following is a property unique to non-metals?

Accepted Answer

They can exist in all three states of matter (solid, liquid, gas) at room temperature.

Answer

They are always shiny.

Answer

They are all conductive.

Answer

They are ductile.

Question 12

What is a common characteristic of metals when they are in solid form?

Accepted Answer

They are malleable and can be drawn into wires.

Answer

They are gaseous at room temperature.

Answer

They have low melting points.

Answer

They are brittle and shatter easily.

Question 13

Which group of elements is found on the right side of the periodic table and is mainly composed of non-metals?

Accepted Answer

Noble gases

Answer

Transition metals

Answer

Alkaline earth metals

Answer

Alkali metals

Question 14

Which of the following represents an element?

Accepted Answer

Neon

Answer

C₆H₁₂O₆

Answer

H2O

Answer

NaCl

Question 15

Which of the following is a property of metalloids?

Accepted Answer

They have intermediate properties between metals and non-metals.

Answer

They are shiny and malleable like metals.

Answer

They can conduct electricity like metals.

Answer

They are always solid at room temperature.

Question 16

Which of the following statements is true about non-metals?

Accepted Answer

They are usually poor conductors of heat and electricity.

Answer

They are ductile and malleable.

Answer

They all have a shiny luster.

Answer

They are always gases at room temperature.

Question 17

What characteristic typically defines metals?

Accepted Answer

Good conductors of heat and electricity

Answer

Brittle in solid form

Answer

Dull appearance

Answer

Low density

Question 18

Which of the following formulas represents a compound?

Accepted Answer

H2O

Answer

N

Answer

Na

Answer

O2

Question 19

How many compounds are shown?

Accepted Answer

3

Answer

5

Answer

1

Answer

6

Answer

4

Answer

2

Question 20

Which of the following is a correct translation of the chemical formula H₂SO₄

Accepted Answer

2 Hydrogen, 1 Sulfur, 4 Oxygen

Answer

1 Hydrogen, 2 Sulfur, 4 Oxygen

Answer

Sulfuric Acid

Answer

2 Hydrogen and 4 SO

Question 21

Which of the following is a correct translation of the chemical formula HNO₃

Accepted Answer

1 Hydrogen, 1 Nitrogen, 3 Oxygen

Answer

1 HN, 3 Oxygen

Answer

3 Hydrogen, 3 Nitrogen, 3 Oxygen

Answer

3 HNO

Question 22

Which of the following is a correct translation of the chemical formula Ca(OH)₂

Accepted Answer

1 Calcium, 2 Oxygen, 2 Hydrogen

Answer

1 Carbon, 1 Aluminum, 1 Oxygen, 2 Hydrogen

Answer

2 Calcium, 2 Oxygen, 2 Hydrogen

Answer

1 Calcium, 1 Argon, 2 OH

Question 23

Which of the following is a correct translation of the chemical formula C₂H₄O₂

Accepted Answer

2 Carbon, 4 Hydrogen, 2 Oxygen

Answer

8 Carbon, 8 Hydrogen, 8 Oxygen

Answer

6 CH, 2 Oxygen

Answer

8 CH, 2 Oxygen

Question 24

Classify the following atom: Oxygen

Accepted Answer

non-metal

Answer

noble gas

Answer

metalloid

Answer

metal

Question 25

Classify the following atom: Ge

Accepted Answer

metalloid

Answer

non-metal

Answer

metal

Answer

noble gas

Question 26

Classify the following atom: Lithium

Accepted Answer

metal

Answer

non-metal

Answer

metalloid

Question 27

Classify the following atom: Nd

Accepted Answer

metal

Answer

non-metal

Answer

noble gas

Answer

metalloid

Question 28

Classify the following atom: Boron

Accepted Answer

metalloid

Answer

metal

Answer

noble gas

Answer

non-metal

Question 29

Classify the following atom: Xe

Accepted Answer

noble gas

Answer

non-metal

Answer

metal

Answer

metalloid

Question 30

Classify the following atom: H

Accepted Answer

non-metal

Answer

noble gas

Answer

metalloid

Answer

metal

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