a sea of electrons which are shared and are free to move around
100
what does chemical bonding mean?
the combining of atoms to form molecules or ionic compounds
200
a bond depends on?
an atom's valence electrons
200
what are some examples of covalent bonding?
water,sugar, and carbon dioxide
200
what is a metallic bond formed between?
the attraction between positive metal ions and th electrons in metal
200
what is a chemical bond?
an interaction that holds atoms or ions together
300
what is an example of an ionic bond?
table salt
300
what are the characteristics of a covalent bond?
low melting and boiling points,brittle in solid state
300
what are the characteristics of a metallic bond?
ductility,malleability, and electrical conductivity
300
what is a molecule?
a group of atoms that are held together by chemical forces; a molecule is the smallest unit of matter that can exist by itself and retain all of a substance's chemical properties
400
what does a chemical bond depend on?
an atom's valence electron
400
what are some characteristics of an ionic bond?
hard,brittle, and has high melting points
400
what does a covalent bond form between?
2 nonmetals
400
what are some examples of a metallic bond?
a fork and a nail
400
what is a crystal lattice?
the regular pattern in which a crystal is arranged
500
what is a group on the periodic table based on?
similar properties and valence electrons
500
what does ionic bond mean?
the attractive force between oppositely charged ions, which form when electrons are transferred from one atom to another
500
what is a covalent bond?
a bond formed when atoms share one or more pairs of electrons
500
what is a metallic bond?
a bond formed by the attraction between positively charged metal ions and the electrons around them
500
what is an ion?
a charged particle that forms when an atom or group of atoms gains or loses one or more electrons