Atomic Theory History with some EM Radiation

Question 1

Ernest Rutherford discovered the ___

Accepted Answer

proton

Question 2

Electrons were discovered by using a ___

Accepted Answer

Cathode Ray Tube

Question 3

Ionizing radiation (UV, X-rays, Gamma) is bad for you because

Accepted Answer

it damages cellular DNA.

Question 4

Sound is not electromagnetic radiation because it

Accepted Answer

needs a medium to travel through

Question 5

Energy and Frequency are ____ proportional

Accepted Answer

directly

Question 6

The type of EM radiation that has the highest wavelength is

Accepted Answer

Radio

Question 7

The gold foil experiment was conducted by ___

Accepted Answer

Rutherford

Question 8

The first atomic theory was proposed by

Accepted Answer

Dalton

Question 9

The type of EM radiation that has the highest frequency is

Accepted Answer

gamma

Question 10

'Atomos' means

Accepted Answer

indivisible

Question 11

Frequency and Wavelength are ____ proportional.

Accepted Answer

inversely

Question 12

He discovered the electron.

Accepted Answer

Thomson

Question 13

He is credited with creating the "Law of Conservation of Mass".

Accepted Answer

Lavoisier

Question 14

The formula that relates energy to frequency is:

Accepted Answer

Ε=hν

Question 15

He coined the term 'atom'.

Accepted Answer

Democritus

Question 16

The speed of light in a vacuum is

Accepted Answer

3.0 x 108 m/s

Question 17

Which of the following was NOT an element thought of by ancient civilizations?

Accepted Answer

Wood

Questions 17