Properties of Elements in the Periodic Table

What are two elements that have the same properties as calcium (Ca)?

Based on the periodic table excerpt, which elements have similar properties to calcium?

Elements with Properties Similar to Calcium

Two elements that have similar properties to calcium (Ca) are magnesium (Mg) and strontium (Sr).

These elements belong to the same group in the periodic table, specifically Group 2 (alkaline earth metals). Elements in the same group often share similar chemical properties.

What is the number of protons, electrons, and neutrons present in an atom of sodium (Na)?

How can we determine the number of protons, electrons, and neutrons in an atom of sodium using the periodic table information?

Protons, Electrons, and Neutrons in Sodium (Na)

An atom of sodium (Na) has 11 protons, 11 electrons, and approximately 11 neutrons.

To determine this, we look at the atomic number of sodium (Na) in the periodic table excerpt provided, which is 11. This number represents the number of protons in the nucleus of a sodium atom.

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