Which of the following pairs of elements is most likely to form an ionic bond?
Magnesium and chlorine
An ionic bond forms when a metal gives electrons to a non-metal.
Magnesium is a metal that loses two electrons and chlorine is a non-metal that gains one, forming MgCl2 (Mg2+ and Cl− ions).
Nitrogen-oxygen and hydrogen-carbon form covalent bonds, and copper and iron are both metals.
Hence, the answer is magnesium and chlorine.
Phosphoric acid (H3PO4) is composed of which of the following ions?
Covalent bonds are formed by the:
Which of the following best describes a molecule of a compound?
Which statement explains why covalent compounds generally have low melting points?
What is formed when a non-metal gains electrons?
When a non-metal gains electrons, it forms:
What is the valency of oxygen in MgO?
Which of the following statements correctly identifies a key property of diamond, an allotrope of carbon, that distinguishes it from graphite?
If a metal and a non-metal is mixed to form a compound, which type of charged species is most likely present, and how are they classified?
Which of the following properties of carbon leads to the formation of a large number of compounds?
Ozone is:
Out of the following which compound does not show sp 3hybridization ?
Which of the following has sp 3d hybridization?
How many geometrical isomers are possible for the complex $ [Pt(NH_3)_2Cl_2] $?
Sulphur exhibit variable Valency due to