Exploring Chemical Symbols and Elements

What is the chemical symbol for Oxygen?

• O

• Ox

• Og

• Oy

Answer explanation

The correct chemical symbol for Oxygen is 'O'. It is represented by the letter 'O' in the periodic table.

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DOK Level 1: Recall

Which element is represented by the symbol Na on the periodic table?

• Nitrogen

• Sodium

• Neon

• Nickel

Answer explanation

The element represented by the symbol Na on the periodic table is Sodium, so the correct choice is Sodium.

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DOK Level 1: Recall

Identify the element with the atomic number 6.

• Carbon

• Oxygen

• Nitrogen

• Hydrogen

Answer explanation

The element with atomic number 6 is Carbon. Each element is uniquely identified by its atomic number, and Carbon has an atomic number of 6.

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DOK Level 1: Recall

Which of the following elements is a noble gas?

• Helium

• Hydrogen

• Carbon

• Sodium

Answer explanation

Helium is a noble gas, while Hydrogen, Carbon, and Sodium are not. Therefore, the correct choice is Helium.

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DOK Level 1: Recall

Using the periodic table, determine the number of protons in a Chlorine atom.

• 17

• 18

• 19

• 20

Answer explanation

Chlorine has 17 protons, which is determined by its atomic number on the periodic table.

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DOK Level 2: Skill/Concept

What is the chemical symbol for the element with atomic number 12?

• Mg

• Mn

• Mo

• Mc

Answer explanation

The chemical symbol for the element with atomic number 12 is Mg, so the correct choice is Mg.

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DOK Level 2: Skill/Concept

NICKEL

• N

• Ni

• Nc

• Nl

Answer explanation

The correct choice is Ni because it is the chemical symbol for Nickel.

POTASSIUM

• P

• Ka

• K

• Pt

Answer explanation

The correct choice is K because the chemical symbol for Potassium is K.

What is the chemical symbol for HELIUM?

• H

• He

• Fe

• Hm

Answer explanation

The chemical symbol for HELIUM is He. Each element has a unique symbol, and in this case, He represents Helium.

What is the chemical symbol for Mercury?

• Mg

• Mn

• Fe

• Hg

Answer explanation

The chemical symbol for Mercury is Hg, so the correct choice is Hg.