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

Question

Rory Cannon

Chemistry

22 March, 00:39

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

+3

Answers (1)

Know the Answer?

Kane Lane · Answer 1

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.

Which of the following groups contains members with similar chemical reactivity?A) SC, Y, ZrB) Li, Be, CC) C, N, OD) Be, Mg, Sr

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