Chemical Elements 1-20

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Calcium

Back

Symbol: Ca, Atomic Number: 20, Essential for bone health.

Front

Atomic number of sodium

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11, Represents the number of protons in sodium.

Front

N

Back

Symbol for Nitrogen, Atomic Number: 7, Essential for life, part of amino acids.

Front

Atomic number of hydrogen

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1, The simplest and most abundant element in the universe.

Front

Atomic number of phosphorus

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15, Important for DNA and RNA.

Front

What is the atomic symbol for potassium?

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K, Atomic Number: 19, Used in fertilizers.

Front

What is the atomic number of carbon?

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6, Fundamental building block of life.

Front

What is the atomic symbol for oxygen?

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O, Atomic Number: 8, Essential for respiration.

Front

What is the atomic number of magnesium?

Back

12, Important for muscle function.

Front

What is the atomic symbol for iron?

Back

Fe, Atomic Number: 26, Essential for blood production.