Q2: Lesson 1.3 | Atomic Structure

Question 1

TRUE OR FALSE: Elements contain ONE capital letter followed by lowercase letter(s) is necessary

Answer 1

True

Question 2

Region where there is 90% probability of finding an atom

Answer 2

Orbital

Question 3

TRUE OR FALSE: Can pinpoint the location of an electron

Answer 3

False (Cannot pinpoint the location of an electron)

Question 4

TRUE OR FALSE: Proton and Electron corresponds to the element’s atomic number

Answer 4

True

Question 5

How do you get an element’s proton

Answer 5

Copy the atomic number

Question 6

How do you get an element’s electron

Answer 6

Copy the atomic number

Question 7

How do you get an element’s neutron

Answer 7

Subtract the atomic number and atomic mass

Question 8

Atoms of the same element with different numbers of neutrons

Answer 8

Isotopes

Question 9

Sum of the protons and neutrons in the nucleus of an atom

Answer 9

Mass number

Question 10

How to get mass number?

Answer 10

Add neutron and proton

Question 11

Avg atomic mass formula

Answer 11

(mass #) (# of atoms) + (mass #)(# of atoms)
_____________________________________

Total # of atoms