Which of the following groups contains members with similar chemical reactivity? a) sc, y,zr b) li, be, c c) c, n,o d)be, mg, sr

Answer is: D) Be, Mg, Sr.

Beryllium, magnesium and strontium are alkaline earth metals (group 2 of Periodic table of elements).

The elements have very similar properties.

Alkaline earth metals have in common an outer s- electron shell (two electrons). For example, magnesium atom.

Atomic number of magnesium (Mg) is 12, it means that it has 12 protons and 12 electrons.  

Electron configuration of magnesium atom: ₁₂Mg 1s² 2s² 2p⁶ 3s².

honesty and integrity.

inspire others.

commitment and passion.

good communicator.

decision-making capabilities.

accountability.

delegation and empowerment.

creativity and innovation.

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