Two: noun: a. the second in a set or series. b. the cardinal number that is the sum of one and one. c. One of the four playing cards in a deck that have two spots. â¦ adjective: a. Being one more than one. Synonyms: both, couple, deuce, double, dual, duad, duo, dyad, pair, set, twin, twofold a set is too vague. a set can vary from 2 to infinity check and english grammar book....... 5 people found this useful.
Those molecules that consist of charged ions with opposite charges are called IONIC. These ionic compounds are generally solids with high melting points and conduct electrical current.Ionic compounds are generally formed from metal and a non-metal elements. See Ionic Bonding below.hose molecules that consist of charged ions with opposite charges are called IONIC. These ionic compounds are generally solids with high melting points and conduct electrical current.
1 Most crystals are ionic compounds. 2  This is because the ions in these compounds tend to stack into crystal lattices to balance between the attractive forces between opposite ions and the repulsive forces between like ions. 3  Covalent or molecular compounds can exist as crystals, though. Ionic compounds tend to have higher melting and boiling points than covalent compounds. 2  Ionic compounds tend to be hard and brittle while covalent compounds tend to be softer and more flexible. 3  Ionic compounds conduct electricity when dissolved in water while covalent compounds typically don't.