Atoms
Isotopes
Wildcard
Atoms #2
Bonus
100
Name the three subatomic particles within an atom
Proton Neutron Electron
100
If an atom has 12 protons and 15 neutrons, what is its isotope name?
Magnesium - 27
100
What do Carbon-12 and Carbon- 13 have in common?
Same number of protons (atomic number)..
100
What is the charge of a proton?
Positive
100

Isotopes have a different number of... a) protons

b) neutrons   c) atomic number

b) neutrons

200
Where are protons located?
The nucleus
200
If an element has 20 protons, 20 electrons, and 20 neutrons, What is its ATOMIC NUMBER?
20 Atomic Number = Number of Protons
200
From its name, what do you know about Oxygen-22? (What does 22 stand for?)
Its mass number is 22.
200
What is the charge of a neutron?
Neutral / No charge
200

Who created the plum pudding model

Thomson

300
What are electrons located?
Electron Cloud
300
An atoms Mass Number is 30.... Keeping in mind that the atomic number is 17, what can you tell about the atom? ((Hint: How do you find the number of neutrons?))
It has 13 neutrons.. mass number - atomic number = neutrons 30 - 17= 13
300
Describe the relationship between protons and the atomic number.
They are the same numbers
300
What is the charge of an electron, and where are they located?
Negative charge, located in the electron cloud
300

Which experiment helped to discover the nucleus?

Rutherford's Gold Foil Experiment

400
Where are neutrons located?
In the nucleus
400
Neutral atoms always have an equal number of what two subatomic particles?
protons and electrons
400
If you know the atomic number and the mass number of an isotope, how can you find out the number of NEUTRONS?
Mass # - Atomic # = neutrons
400
why aren't electrons used to figure out the mass number of an atom?
Because electrons are too too small, they barley have any mass!
400

What is the Average atomic mass?

The weighted average of all of the isotope masses for a specific element

500
Protons + Neutrons = ____________
Protons + Neutrons = the mass number of an atom
500
Which about isotopes is true? a. they have the same number of neutrons b. they have a different atomic number c. they have the same number of protons
C. They have the same number of protons
500
To change Li to Li+, you need to:
remove one electron
500
How can you find the number of neutrons of an atom?
Mass number - Atomic Number = Neutrons
500

Where on the periodic table can you find the average atomic mass of an element?

Under the element symbol

M
e
n
u