ch 2 inorganic chemistry

Question 1

varieties of an element that differ only in the number of neutrons.

Answer 1

isotopes

Question 2

oxygen, carbon, hydrogen, nitrogen, calcium, phosphorus.

Answer 2

6 elements that make up 98.5 percent of body weight.

Question 3

neils bohr

Answer 3

came up with the planetary model.

Question 4

number of protons in the nucleus

Answer 4

atomic number

Question 5

unstable isotopes that decay and give off radiation.

Answer 5

radioisotopes

Question 6

unit of radiation dosage

Answer 6

sievert

Question 7

standard acceptable exposure of sievert

Answer 7

50 msv per year

Question 8

usually a fatal dose of sievert

Answer 8

5 sv or more

Question 9

charged particle with unequal number of protons and electrons

Answer 9

ion

Question 10

transfer of electrons from one atom to another anion

Answer 10

ionization

Question 11

particle that has a net positive charge (due to loss of electrons)

Answer 11

cation

Question 12

minerals in your blood and other body fluids that carry an electric charge

Answer 12

electrolytes

Question 13

short lived with an unusual number of electrons.

Answer 13

free radicals

Question 14

chemicals that neutralize free radicals

Answer 14

antioxidants

Question 15

particle composed of two or more atoms united by a chemical bond

Answer 15

molecule

Question 16

molecule composed of two or more different elements

Answer 16

compound

Question 17

identifies constituent elements and how many atoms each are present

Answer 17

molecular formula

Question 18

identifies location of each atom

Answer 18

structural formula

Question 19

molecules with identical molecular formulae but different arrangements of atoms

Answer 19

isomers