Valence Electrons
Electon Dot Diagrams
Chemical Bonds and Stability
Chemical Bonds and Chemical Reactions
100
What are valence electrons?
Electrons of an atom that have the highest energy level and are held most loosely
100
What does an electron dot diagram contain?
the symbol for the element surrounded by dots
100
What is a chemical bond?
the force of attraction that holds two atoms together
100

How can a chemical reaction in an atom occur?

When atoms transfer or share or share atoms between each other

200
What does the number of valence electrons in an atom determine?
Which properties that element would have
200
What do the dots in the electron dot diagram stand for?
The number of valence electrons
200
How many valence electrons are needed to make an atom of an element more stable?
8
200

Does Argon have high or low reactivity?

Low

300
True or False: The number of vlence electrons does not determine the ways the atom bonds with others
False
300
How many valence electrons can be in an atom? Hint: It is a range of numbers.
1-8
300
Which of these events can happen when an atom reacts? A: electrons are transferred between atoms B: electrons are shared between atoms C: the number of valence electrons increases to 8 D: the atom gives up loosely held valence electrons E: all of the above
E
300

How many valence electrons does sodium (Na) want to be happy

7

400

What is Valence electron goals? what is the rule called 

8, octet rule

400

How many dots should surround the element chlorine. 

7

400
Which elements have eight valence electrons, therefore being the most unreactive?
Noble gases (neon, argon, krypton, and xenon)
400

How many valence electrons does Neon (Ne) want to be happy? 

None

500

What tells you the number of valence electrons on the periodic table? 

Group #

500

How many dots would surround B on a electron dot diagram? 

3

500

How many electrons does Mg need to be happy? 

6

500

Explain why NaCl might be a common compound as it relates to reactivity and valence electrons.

Sodium has 1 valence electron and Cl has 7. 1+7 = 8 

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