CT4

Question 1

What does the Electromagnetic Spectrum range to?

Answer 1

Radio waves to gama rays

Question 2

What happens to the frequency when the wavelength is increased?

Answer 2

the frequency decreases (gets smaller)

Question 3

Do radio waves cause significant harm?

Answer 3

NO

Question 4

What are radio waves used for?

Answer 4

Communication by radios and televisions

Question 5

What are gamma rays constantly used for?

Answer 5

Targeting and destroying cancer cells.

Question 6

What is the distance between the nucleus and the first electron in an atom?

Answer 6

Massive, lots of space

Question 7

What is the charge of the nucleus

Answer 7

positive

Question 8

Who and when created the first atomic model?

Answer 8

Dalton, 1803

Question 9

Who and when created the second atomic model?

Answer 9

Thomson, 1904

Question 10

What idea did Thomson come up with?

Answer 10

Plum pudding model

Question 11

Who was the third person to create the atomic model?

Answer 11

Rutherford

Question 12

Who was the fourth person to create the atomic model?

Answer 12

Bohr

Question 13

Who was the fifth person to create the atomic model?

Answer 13

Schrodinger

Question 14

Who was the sixth person to create the atomic model?

Answer 14

Quantum

Question 15

What does inert mean?

Answer 15

Stable and unreactive under specified conditions

Question 16

What is an alpha particle?

Answer 16

Positively charged particles that consist of two protons and two neutrons and zero electrons.

Question 17

In Rutherford’s foil experiment: Some particles were deflected What does this tell us?

Answer 17

Atoms have positive and negative charges to repel and attract alpha.

Question 18

In Rutherford’s foil experiment: Most alpha particles passed through. What does this tell us?

Answer 18

Mostly empty space

Question 19

In Rutherford’s foil experiment: Some particles bounced back. What does this tell us?

Answer 19

Evidence of a ‘solid/dense’ nucleus.