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Elements in the same group have similar properties. Which pair of elements would you expect to have similar properties?
O carbon (C) and silicon (Si)
O copper (Cu) and zinc (Zn)
O hydrogen (H) and helium (He)
O nitrogen (N) and oxygen (O)

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quasarJose

Answer:

carbon (C) and silicon (Si)

Explanation:

From the given choices, only carbon and silicon belongs to the same group on the periodic table.

A group on the periodic table is the vertical arrangement of elements. Each of the resulting vertical columns is known as a group or family.

  • Elements in the same group have similar chemical properties because they all have the same number of electrons in their outermost shell.
  • When valency controls the chemical reactivity of an elemental group.
  • Since carbon and silicon are in the fourth group, they react the same ways and have similar chemical properties.

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