Whats the difference between ionic compounds and molecular compounds?

Question

I need 3 examples.

IT WAS A QUESTION ON MY TEST THAT I GOT WRONG

Answer 1

An ionic compound stays together because electrons have been completely removed from one atom and added to another, leaving the atoms positively and negatively charged and therefore attracted to one another. An example is table salt, in which sodium and chlorine chemically react to form positive sodium ions and negative chloride ions.

A covalent compound (perhaps that is what you mean by molecular) is one where the electrons are being shared by two or more atoms and therefore they have to stay close to one another to allow the electron to orbit them both. An example is water, where oxygen requires two electrons to have a sphere and two hydrogens each share an electron with an oxygen.

It's all about stability. Atoms need a certain number of electrons in the outer shell to form a balanced sphere (or nearly spherical orbit).

Answer 2

an Ionic compund is one in which the electrons are not shared equally amongst the atoms in the compound... for example Sodium Chloride... The electron tends to spend way more time around the Chlorine thus making chlorine have an overall negative charge and the sodium overall positive.

Ionic compounds usually exist in a lattice structure, are held together by ionic bonds, and consist of cations and anions. (elements with positive and negative charges respectively)

Ionic compounds are not grouped together by molecules, whereas Molecular compounds are.

Molecular componds are made up of neutrally charged molecules, the molecules in the compound share the electrons evenly, and they have no geometrical organization. I hope this helps a little...

Answer 3

Ionic compounds are formed between atoms that lose electrons and atoms that gain electrons. Usually the electronegativity difference between the two ions is 1.7 or more. Examples of ionic compounds would be any of the Group IA and halogen (Group VIIB). KBr, LiF, or NaCl are all ionic compounds. Covalent or molecular compounds are those that share pairs of electrons and are close in electronegativity and usually close on the periodic chart. Examples CH4, CO2, or SO2

Answer 4

NaCl (Sodium chloride): ionic compound made of a metal (Na) and a non-metal (Cl). Such compound is based on the charge on the atoms. Ionic bonding.
CH4 (methane): covalently bonded compound, molecular compound. Such compound is based on the sharing of electron by both atom.

Answer 5

Ionic compounds are made up of charged ions, of opposite charges, attracting each other to form solids. They cannot conduct electricity in the solid form as their ions are not mobile. They can only conduct electricity when they are melted (fused) or dissolved in water.
Most ionic compounds are soluble in water like all sodium salts, all metal nitrates.
Eg of ionic compounds: NaCl NaOH CaCO3
sodium chloride - soluble in water
sodium hydroxide - soluble in water
calcium carbonate - insoluble in water
Most ionic compounds exist as solids at room temperature and pressure (r.t.p.)

Covalent compounds are mainly gases and liquids at r.t.p. They exist as molecules - hence they cannot conduct electricity in any form, as they do not contain charged particles.
Macromoleucles like protein, carbohydrates and fats are solids at r.t.p.
Simple, small molecular compounds are formed by having covalent bonds.
Examples
CO2 - carbon dioxide
CO - carbon monoxide (poisonous gas)
plastics like polythene or polystyrene
Most covalent (molecular) compounds are not soluble in water.

Answer 6

ionic: form between a metal and a nonmetal, are between ions, form when electrons are transfered, come in units of crystals.

molecular: form between nonmetals and nonmetals, are between atoms, form when electrons are shared, come in units of molecules.