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.
