Atomic Structure

Scientists

100

What was the first subatomic particle discovered in the atom?

electrons

300

What is the theory called that JJ Thompson came up with?

Plum pudding model

500

What scientist discovered the nucleus by shooting alpha particles through gold foil

Ernest Rutherford

Atomic Structure

100

What subatomic particle has a positive charge?

proton

300

How do you determine the number of protons in an atom?

atomic number

500

How many protons, neutrons, and electrons are in Calcium - 40.

p=20

e=20

n=20

Atomic Structure

100

What charge does a neutron have? 

neutral 

300

How do you determine the mass of an atom?

 protons + neutrons 

500

How many protons, neutrons, and electrons are in oxygen-18.

p=8

e=8

n=10

Atomic Structure

100

What is the difference between Iron-56 and Iron-58

The mass/the number of neutrons 

300

If gold has 118 neutrons what is the mass?

197

500

How do you write the nuclear symbol for Platinum- 195

¹⁹⁵Pt₇₈

mole conversion

100

1 mol = ______________ formula units

6.022 x 10²³

300

Molar mass is =

g/mol

how many grams are in 1 mol

500

How many molecules are in 3.5 g of NaOH?

5.3x10²²molecules

mole conversion

100

what is the molar mass of HCl with 3 sig figs (include units)

36.5 g/mol

300

How many moles are present in 89.4 grams of UOCl2

0.275moles

500

If  burned 6.10x1024 molecules of C2H6 , what mass C2H6 did you burn?

305