Atoms and the Periodic Table

Question 1

Dalton said that atoms

Accepted Answer

atoms cannot be broken down

Question 2

Isotopes of an element have the same number of ___________ but different numbers of _________

Accepted Answer

protons, neutrons

Question 3

Medeleev organized the periodic table by _______________ and similar properties

Accepted Answer

Atomic Mass

Question 4

The current periodic table is arranged by _________________ and similar properties

Accepted Answer

Atomic Number

Question 5

The current model of the atom is called the

Accepted Answer

Electron Cloud Model

Question 6

These elements are poor conductors of heat and electricity

Accepted Answer

Nonmetals

Question 7

The ability to be drawn into a thin wire

Accepted Answer

Ductile

Question 8

Most elements on the periodic table are metals

Accepted Answer

True

Question 9

What are the charges of protons, neutrons, electrons (in order)

Accepted Answer

Positive, neutral, negative

Question 10

Thomson used the _____________ to determine that atoms have negative particles

Accepted Answer

cathode ray tube

Question 11

Groups on the periodic table are arranged

Accepted Answer

Vertically

Question 12

Carbon-14 has 6 protons. How many neutrons does it have?

Accepted Answer

8

Question 13

Mosely organized the periodic table by ________________ and similar properties

Accepted Answer

Atomic Number

Question 14

The "14" in Carbon-14 represents the

Accepted Answer

Mass Number

Question 15

These elements are malleable

Accepted Answer

Metals

Question 16

What is the mass number equal too?

Accepted Answer

Number of protons plus neutrons

Question 17

Rutherford used the ________________________ to determine that the atom is mostly empty space

Accepted Answer

Gold Foil Experiment

Question 18

What is the atomic number equal to?

Accepted Answer

Number protons

Question 19

The nucleus of an atom contains

Accepted Answer

Protons and Neutrons

Question 20

Rutherford discovered that atoms have

Accepted Answer

a dense, positive neuclus

Questions 20