Electrons
Ions
Compounds
Metals
Miscellaneous
100
The electrons involved in the bonding of atoms are called _______________.
Valence Electrons
100
What is an Ionic Bond?
The force of attraction between 2 oppositely charged Ions.
100
In an Ionic compound, which element is written first?
The positive Ion
100
Which of the following are Alloys? -Brass -Gold -Steel -Copper -Tin
Brass and Steel
100
What has a lower melting point, Ionic compounds or molecular compounds?
Molecular Compounds
200
What is the maximum number of valence electrons an atom can have?
8
200
When an atom loses an electron, what type of Ion does it become?
A positive Ion (1+)
200
What type of compound is NaCl?
Ionic Compound
200
What is an Alloy?
A mixture of 2 or more elements, at least one of which is a metal.
200
What is a polar bond?
A covalent bond in which the electrons are shred unequally.
300
Which group contains elements that have 8 valence electrons and don't normally react?
Group 18 (Noble Gases)
300
What charge would an Aluminum Ion have?
3+
300
Name 2 properties of Ionic Compounds.
-Hard, Brittle Solids -High Melting Points -Conducts electricity (when dissolved or melted)
300
What advantages do alloys have over pure metals?
They are typically stronger and less reactive.
300
If Sodium and Nitrogen were to bond, how would you write the Chemical Formula?
Na3N
400
Which group contains elements that need to gain 3 electrons to fill their outer energy level?
Group 15 (Nitrogen Family)
400
Name and give the symbol for ANY polyatomic Ion.
(Various answers)
400
Magnesium Bromide has a formula of MgBr2. What does the 2 tell you?
There are 2 Bromide Ions for every Magnesium Ion.
400
What is a metallic bond?
The attraction of positive metal ions to a "sea of electrons" surrounding them.
400
What type of bond holds the atoms together in CH4? How do you know?
Covalent Bond, because both are non-metals.
500
What charge would a Carbon Ion have?
Either 4+ or 4-
500
Which of the following would bond with Fluorine to form an Ionic bond? -Another Fluorine -Carbon -Lithium -Neon
Lithium
500
What element will bond with Chlorine MOST EASILY? -Another Chlorine -Phosphorus -Potassium -Magnesium
Potassium
500
Why do metals conduct electricity?
The loosely held valence electrons can easily move around, like a "sea of electrons"
500
Draw the electron dot diagram and the electron configuration diagram for Magnesium.
(See Pictures)
M
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n
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