Which is a covalent compound?
a. Magnesium oxide forms small crystals, and the crystals are hard but brittle.
B. Methane is a gas at room temperature and does not conduct electricity.
C. Copper is metallic and can be hammered into different shapes.

Question

Which is a covalent compound?
a. Magnesium oxide forms small crystals, and the crystals are hard but brittle.
B. Methane is a gas at room temperature and does not conduct electricity.
C. Copper is metallic and can be hammered into different shapes.

anonymous · Answer

Hey there. cOvalent bonds consistin sharing of electrons, generally between non-metals, in order to gain 8 electrons, each atom. As for metals, their bond is metallic and mor a non-metal+metal, it is ionic, as the metal loses and th non-metal gains electrons. Methane, made up of two non-metals, hydrogen and Carbon sre a typical example for covalent bond. As carbon adds his 4 electron to the 4 of Hydrogen, by octect rule, it ends up with 8 electrons around it. Hence, answer is B.
Hope you understood it.

anonymous · Answer

Thank you!
and i do (: