Elements 21-30 Symbol & Name

1.

Scandium's symbol=

A.

Sa
B.

Q
C.

Sc
D.

Sd
E.

Sm

Correct Answer
C. Sc

Explanation
The correct answer is "Sc". Scandium's symbol in the periodic table is "Sc".

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2.

Cr is what element?

Correct Answer
Chromium

Explanation
Chromium is the correct answer because it is the chemical element with the symbol Cr. It is a hard, lustrous, steel-gray metal that is commonly used in various industrial applications, including the production of stainless steel. Chromium is also an essential trace element for humans and plays a crucial role in various biological processes.

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3.

V is the symbol for what element?

Correct Answer
Vanadium

Explanation
Vanadium is represented by the symbol V in the periodic table. The question asks for the symbol of the element, and since Vanadium is the only option provided, it is the correct answer.

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4.

The symbol for Zinc is...

Correct Answer
Zn

Explanation
The symbol for an element is a shorthand representation of its name, typically consisting of one or two letters. In this case, the symbol for Zinc is Zn.

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5.

Fe is what element?

Correct Answer
iron

Explanation
Fe is the chemical symbol for the element iron. The chemical symbol is a shorthand way to represent an element. In this case, Fe specifically represents the element iron, which is a metallic element commonly found in the Earth's crust.

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6.

Titanium's symbol=

Correct Answer
Ti

Explanation
The symbol for an element is a shorthand representation of its name, typically derived from either the first letter or the first two letters of its name. In this case, the correct answer is Ti, which is the symbol for Titanium. The symbol Ti is derived from the first two letters of the element's name.

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7.

Mn is the symbol for...

Correct Answer
manganese

Explanation
Mn is the chemical symbol for the element manganese. Chemical symbols are used to represent elements in the periodic table and are typically derived from the element's name or its Latin name. In this case, "Mn" is derived from the Latin name "magnesium nitride," which is the compound formed by the reaction of magnesium and nitrogen. Therefore, the correct answer is manganese.

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8.

Nickel's symbol=

Correct Answer
Ni

Explanation
The correct answer is Ni because Ni is the chemical symbol for the element nickel. Chemical symbols are used to represent elements in the periodic table and are typically derived from the element's name in English or Latin. In this case, "Ni" is the shortened form of the word "nickel".

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9.

Co is...

Correct Answer
Cobalt

Explanation
Cobalt is a chemical element with the symbol Co. It is a hard, lustrous, silver-gray metal that is commonly used in the production of alloys, magnets, and rechargeable batteries. Cobalt is also an essential trace element for humans and animals, playing a crucial role in the formation of vitamin B12. Therefore, based on the given information, it can be inferred that "Co" refers to cobalt.

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10.

Copper's symbol is...

Correct Answer
Cu

Explanation
Copper's symbol is Cu because it is derived from its Latin name "cuprum". Cu is the abbreviation for cuprum, which is why it is used to represent copper in the periodic table and chemical equations.

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