Lesson 3 unit 2 chem
Presentation
•
Science
•
10th Grade
•
Practice Problem
•
Easy
Standards-aligned
Alex Davila
Used 2+ times
FREE Resource
6 Slides • 4 Questions
1
Isoelectronic
By Alex Davila
SWBAT: predict stable
ions and identify
isoelectronic species.
2
Match
Match the following
All elements look to be...
Gained 3 electrons
Lost 2 electrons
Lost 1 electron
Gained 1 electron
Stable by having a full outer shell
Gained 3 electrons
Lost 2 electrons
Lost 1 electron
Gained 1 electron
Stable by having a full outer shell
3
How many valence electrons does oxygen have?
To be stable will it need to gain or lose electrons? Why?
Will it be a cation or anion?
OXYGEN
4
Cations | Lose Electrons | Positive Charge | Na->Na+ |
|---|---|---|---|
Anions | Gain electrons | Negative Charge | Cl-> Cl- |
Cations and Anions
5
Ions/atoms that have the same electron configuration.
EXAMPLE:
Ne, Na+ , O-2 all have 10electrons--> They are isoelectronic with Ne.
Isoelectronic
6
Electron Configuration
Write the Full electron configuration of O-2
Write the Full electron Configuration of Neon (Ne)
Oxygen is Isoelectronic with Ne
7
A) Lithium
B)Flourine
C)Chlorine
Which element is Isoelectronic with Argon (Ar)?
8
Multiple Choice
What is the electron Configuration of Be+2
1s2
1s2 2s2
9
Multiple Choice
Sodium (Na) will become isoelectronic with which gas after Ionization?
Ne
Ar
He
O
10
Multiple Choice
What is the gas that is isoelectronic with K+
He
Ne
Ar
Xe
Isoelectronic
By Alex Davila
SWBAT: predict stable
ions and identify
isoelectronic species.
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