Class Review:

Are All Atoms of the Same Element Alike?

What did you learn about vibranium in this unit?

• Different types of vibranium atoms
• One that melts metal using vibrations
• One that absorbs & releases kinetic energy
• Hard to destroy...can only be destroyed by other vibranium
• Made in outerspace….got to earth via asteroid
• It valuable/rare
• It edible

Class Vibranium Brainstorm

• It strongest material on earth
• It’s a metal
• Been around for millions of years
• ⅓ the mass of steel

The last big concept we learned vibranium before leaving for winter break was that that is comes in 5 different versions.

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What are different versions of the same element called that have different masses?

ISOTOPES!!!!

What, if anything, do you remember about the different isotopes of vibranium?

Wakandan Vibranium

Antarctic

Vibranium

• Found in Africa

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• Absorbs sounds waves & kinetic energy into its bonds making them stronger

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• Hard to damage/destroy

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• Ductile & malleable

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• Limit to amount of sound and kinetic energy it can absorb.

• Found in Antarctica

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• Cannot absorb sounds waves & kinetic energy.

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• Generates vibrations that can liquify metal by weakening the bonds in it.

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• Deadly because it can dissolve iron content in the blood

5 Isotopes Total

(2 Are Naturally Occuring)

Let’s review what we learned about different versions of the same type of element!!!!

Atoms are made of

1. Protons
1. Positive charged
2. Found in nucleus
3. Job: Gives the element its name
4. We cannot gain or lose protons because that would change the element
2. Neutrons
• Neutral = no charge
• Found in nucleus
• Job: Make the nucleus stable so protons don’t repels
3. Electrons
• Negative charged
• Found on the rings outside the nucleus
• Job: It helps atoms bond to other atoms giving them their chemical properties (Sharing or giving away electrons.)

Types of Atoms

Neutral Atoms

Isotopes

Ions

Definition: An atom that does not have a charge.

Definition: Different atoms of the same element that have the same number of protons but different masses!

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*Gained/lost neutrons

Remember:

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Mass Number = protons + neutron

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Neutrons =Mass - Protons

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*Protons = Atomic Number = Name

Definition: An ion is an atom with a positive or negative charge.

How:

# of Protons = # of Electrons

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Formed By An Atom...

Gaining Electrons

Losing Electrons^-

Creates a “-” charged atom

Creates a “+”

charged atom

You can assume atoms are neutral unless you are given a sign they are not!

Ex.

• “Ion” is in the name
• #p⁺ ≠ #e^-
• You see a charge on the symbol

Types of Atoms

Neutral Atoms

Isotopes

Ions

Definition: Atoms without a charge.

How:

#protons = # electrons

In the atom!

You can assume atoms are neutral unless you are given a sign they are not!

Ex.

• “Ion” is in the name
• #p⁺ ≠ #e^-
• You see a charge on the symbol

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Hydrogen -1 (¹₁H)

Hydrogen -2 (²₁H)

Hydrogen -3 (³₁H)

All these isotopes are also neutral.

Example 1:

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Hydrogen -3 Ion (³₁H⁺¹)

Why is this a positive ion?

Example 2:

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What element is this?

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What charge would it have?

Oxygen-16 Ion (^16.₈O^-2)

Nuclide Symbol

(How to symbolize which version of an element you are referring to.)

(Protons + Neutrons)

(Same as the proton number

on periodic table.)

(Total Protons - Total Electrons)

Nuclide Name

(How to name which version of an element you are referring to.)

Element Name - Mass Number

Hyphen

(Not subtraction)

(P + N)

(Find # of P on periodic table to get name)