Chapter 2 Atoms, Molecules and Ions

Question 1

What is the law of conservation of matter?

Answer 1

matter is neither created or destroyed

Question 2

What is the law of constant composition

Answer 2

specific compounds contain elements in a fixed ratio

Question 3

what is the atomic number equivalent to?

Answer 3

equal to the number of protons

Question 4

What is the ratio between protons and electrons in a neutral atom

Answer 4

they are equal

Question 5

How do you find the number of neutrons

Answer 5

atomic mass-#of protons

Question 6

what are periods

Answer 6

horizontal rows

Question 7

what are groups

Answer 7

vertical columns

Question 8

what are the characteristics of metals

Answer 8

luster, conductivity, malleable, ductile

Question 9

nonmetals

Answer 9

dull, non conductive, not malleable, essential to life

Question 10

what are semi metals/ metalloids

Answer 10

a combination of metals and nonmetals

Question 11

what are molecules

Answer 11

2 or more atoms chemically bonded together

Question 12

what are ions?

Answer 12

atoms that have gained or lost valence electrons

Question 13

Cations(Cathode)

Answer 13

the metal ion losing to become positive

Question 14

anions(anode)

Answer 14

the nonmetal atom that gains electrons

Question 15

What are the binary molecular compound names 1-10

Answer 15

mono, di, tri, terat, penta, hexa, hepta, octa, nona, deca