5.1 Chemistry

Question 1

What does a proton do?

Answer 1

determines the element of the atom (atomic number)

Question 2

What is the charge, mass, and location of a proton?

Answer 2

+ charge, 1amu mass, and protons are located inside the nucleus

Question 3

Describe a neutron.

Answer 3

0 charge, about 1amu in mass, located in the nucleus, the job of a neutron is to hold the protons together

Question 4

What does an electron do?

Answer 4

performs chemical reactions with other elements

Question 5

True or False?
An electron has a positive charge.

Answer 5

False.
electrons have negative charges

Question 6

What does the atomic number tell us?

Answer 6

how many protons are in the element

Question 7

Why don’t protons stick together?

Answer 7

they repel without neutrons

Question 8

How can you get the strongest attraction between two particles?

Answer 8

the strongest attraction between two particles occurs with opposite charges, minimum distance and maximum charge

Question 9

How can you get the strongest repulsion between two particles?

Answer 9

maximum distance, same charge, and minimum charge (negative)

Question 10

True or Fasle?
Force is directly related to charge.

Answer 10

True.
on the other hand, force is inversely related to the distance squared

Question 11

What happens to the force if a charge is x3?

Answer 11

x3

Question 12

What happens to the force if the distance is x3?

Answer 12

x1/9

Question 13

How is the attraction for valence affected by distance from the nucleus?

Answer 13

longer distance = less force

Question 14

How is the nucleus changing as you go across the periodic table?

Answer 14

more protons are added to each element