The Atom and Periodic Table

Question 1

What is the name of Number #2

Accepted Answer

Atomic Number

Question 2

Which of the following experiments led to the discovery of the nucleus?

Accepted Answer

Gold Foil experiment

Question 3

What is the name of Number #1

Accepted Answer

Atomic Name

Question 4

Mendeleev created the first periodic table by arranging elements in order of

Accepted Answer

increasing atomic mass.

Question 5

What is Number #2 pointing to?

Accepted Answer

electron

Question 6

Atoms of the same element that contain different numbers of neutrons

Accepted Answer

isotopes

Question 7

The number of protons in an atom has

Accepted Answer

Atomic Number

Question 8

The sum of the number of protons and neutrons the atom has

Accepted Answer

Atomic Mass

Question 9

Arrange the following particles in order from the largest to smallest

Accepted Answer

Atom, Nucleus, Protron, Electron

Question 10

What is the name of Number #3

Accepted Answer

Atomic Symbol

Question 11

The Crookes tube illustrated what concept about the atom?

Accepted Answer

Cathode rays are (-) particles, eventually called electrons

Question 12

An atom is comprised of mostly this (Best Answer)

Accepted Answer

empty space

Question 13

Where electrons hang out

Accepted Answer

electron cloud

Question 14

What is Number #1 pointing to?

Accepted Answer

proton

Question 15

Who is credited with discovering the atom's nucleus?

Accepted Answer

Rutherford

Question 16

Which of the following experiments led to the discovery of the electron?

Accepted Answer

Crooke's tube, Cathode Ray tube

Question 17

What prediction did Mendeleev make that came true less than 20 years later?

Accepted Answer

3 new elements would be found, and described the properties.

Question 18

Developed names and symbols for atoms. Said atoms are pure and cannot be made smaller.

Accepted Answer

Dalton

Question 19

What is Number #3 pointing to?

Accepted Answer

nucleus

Question 20

What is the name of Number #4

Accepted Answer

Atomic Mass or Avg Atomic Mass

Question 21

What is Number #4 pointing to?

Accepted Answer

neutron

Question 22

The experiment using gold foil illustrated what concept about the atom?

Accepted Answer

Atoms have a (+) center that contains most of its mass

Question 23

Who is credited with creating the concept of an atom?

Accepted Answer

Democritus

Question 24

The smallest particle in an atom

Accepted Answer

electrons

Question 25

Who is credited with making the first "workable" Periodic Table?

Accepted Answer

Mendeleev

The Atom and Periodic Table

Questions 25

The Atom and Periodic Table

Questions 25