chapter 6 vocabulary

Question 1

Anion

Answer 1

atoms or groups of atoms that have a negative charge

Question 2

binary compound

Answer 2

compounds composed of two elements

Question 3

cation

Answer 3

any atom or group of atoms that has a positive charge

Question 4

chemical formula

Answer 4

shows the kinds and numbers of atoms in the smallest representative unit of the substance

Question 5

formula unit

Answer 5

the lowest whole number ratio of ions in the compound

Question 6

ion

Answer 6

atoms or groups of atoms that have a positive or negative charge

Question 7

ionic compound

Answer 7

compounds composed of cations and anions

Question 8

law of definite proportions

Answer 8

states that in samples of any chemical compound, the masses of the elements are always in the same proportions

Question 9

law of multiple proportions

Answer 9

whenever two elements form more than one compound, the different masses of one element that combine with the same mass of the other element are in the ratio of small whole numbers

Question 10

molecular compound

Answer 10

compounds composed of molecules

Question 11

molecular formula

Answer 11

shows the kinds and numbers of atoms present in a molecule of a compound

Question 12

molecule

Answer 12

the smallest electrically neutral unit of a substance that still has the properties of the substance

Question 13

monatomic ion

Answer 13

ions consisting of only one atom , the ionic charges can often be determined by using the periodic table

Question 14

polyatomic ion

Answer 14

tightly bound groups of atoms that behave as a unit and carry a charge

Question 15

ternary compound

Answer 15

a compound that contains atoms of three different elements