Chapter 2

Question 1

What is the definition of an atom

Answer 1

Smallest matter that maintains the property of matter

Question 2

Law of definite proportions

Answer 2

Different samples of the same compound always contain its constitute elements in the same proportions by mass

Question 3

Law of multiple proportions

Answer 3

If two elements combine to form more than one compound the masses of one element that combine with a fixed mass of the other elements are in ratios of small whole numbers

Question 4

Law conservation of mass

Answer 4

Matter cannot be rested nor destroyed

Question 5

Who descorred the electron

Answer 5

Jj Thompson with catho ray tube

Question 6

Who found the charge of electron

Answer 6

Millikian with oil droplet experiment

Question 7

Who discovered the nucleus

Answer 7

E Rutherford with gold foil experiment

Question 8

What is an ion

Answer 8

A species with unequal number of protons and electrons ( not neutral )

Question 9

What class of elements tend to from cations

Answer 9

Metals

Question 10

What class of elements tend to for anions

Answer 10

Non metals