Emgels Lesson 2

Question 1

What is the chemical symbol for aluminium?

Answer 1

Al

Aluminium is a silvery-white metal, known for its lightweight and corrosion resistance.

Question 2

What is the chemical symbol for argon?

Answer 2

Ar

Argon is a noble gas and is colorless, odorless, and non-toxic.

Question 3

What is the chemical symbol for barium?

Answer 3

Ba

Barium is a soft, silvery-white metal that is part of the alkaline earth metals.

Question 4

What is the chemical symbol for mercury?

Answer 4

Hg

Mercury is the only metal that is liquid at room temperature.

Question 5

What is the chemical symbol for lithium?

Answer 5

Li

Lithium is a soft, silvery-white alkali metal and is the lightest metal.

Question 6

lood?

Answer 6

Pb

Question 7

What is the chemical symbol for boron?

Answer 7

B

Boron is a metalloid that is essential for plant growth.

Question 8

What is the chemical symbol for magnesium?

Answer 8

Mg

Magnesium is an alkaline earth metal that is important for biological functions.

Question 9

What is the chemical symbol for manganese?

Answer 9

Mn

Manganese is a transition metal important for steel production.

Question 10

What is the chemical symbol for sodium?

Answer 10

Na

Sodium is an alkali metal that is highly reactive, especially with water.

Question 11

What is the chemical symbol for calcium?

Answer 11

Ca

Calcium is essential for living organisms, particularly in cell physiology.

Question 12

What is the chemical symbol for neon?

Answer 12

Ne

Neon is a noble gas used in neon signs due to its distinct reddish-orange glow.

Question 13

What is the chemical symbol for chlorine?

Answer 13

Cl

Chlorine is a yellow-green gas and is commonly used as a disinfectant.

Question 14

What is the chemical symbol for chromium?

Answer 14

Cr

Chromium is known for its high corrosion resistance and is used in stainless steel.

Question 15

What is the chemical symbol for fluorine?

Answer 15

F

Fluorine is a highly reactive pale yellow gas and is the most electronegative element.

Question 16

What is the chemical symbol for platinum?

Answer 16

Pt

Platinum is a dense, malleable metal known for its resistance to corrosion.

Question 17

What is the chemical symbol for silicon?

Answer 17

Si

Silicon is a metalloid widely used in electronics and solar cells.

Question 18

What is the chemical symbol for nitrogen?

Answer 18

N

Nitrogen makes up about 78% of Earth’s atmosphere and is essential for life.

Question 19

What is the chemical symbol for phosphorus?

Answer 19

P

Phosphorus is vital for DNA and RNA and plays a key role in energy transfer.

Question 20

What is the chemical symbol for tin?

Answer 20

Sn

Tin is used in alloys and coatings to prevent corrosion.

Question 21

What is the chemical symbol for gold?

Answer 21

Au

Gold is a highly valued precious metal known for its luster and malleability.

Question 22

What is the chemical symbol for helium?

Answer 22

He

Helium is a colorless, odorless gas that is lighter than air.

Question 23

What is the chemical symbol for uranium?

Answer 23

U

Uranium is a heavy metal used as fuel in nuclear reactors.

Question 24

What is the chemical symbol for hydrogen?

Answer 24

H

Hydrogen is the simplest and most abundant element in the universe.

Question 25

What is the chemical symbol for iron?

Answer 25

Fe ## Footnote Iron is a key component in steel production and is vital for biological organisms.

Question 26

What is the chemical symbol for iodine?

Answer 26

I ## Footnote Iodine is essential for thyroid function in humans.

Question 27

What is the chemical symbol for potassium?

Answer 27

K ## Footnote Potassium is an essential nutrient important for heart and muscle function.

Question 28

What is the chemical symbol for silver?

Answer 28

Ag ## Footnote Silver is known for its high electrical conductivity and is used in jewelry and electronics.

Question 29

What is the chemical symbol for zinc?

Answer 29

Zn ## Footnote Zinc is important for immune function and is used in galvanization.

Question 30

What is the chemical symbol for oxygen?

Answer 30

O ## Footnote Oxygen is essential for respiration in most living organisms.

Question 31

What is the chemical symbol for cobalt?

Answer 31

Co ## Footnote Cobalt is used in the production of batteries and as a pigment in glass.

Question 32

What is the chemical symbol for sulfur?

Answer 32

S ## Footnote Sulfur is essential for life and is used in fertilizers and pharmaceuticals.

Question 33

What is the chemical symbol for carbon?

Answer 33

C ## Footnote Carbon is the backbone of organic molecules and is essential for life.

Question 34

What is the chemical symbol for copper?

Answer 34

Cu ## Footnote Copper is known for its electrical conductivity and is used in wiring and plumbing.