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Science: Chapter 1-2 Quiz (12.12.18)
Other Resources/Review: Ionic Bonding #1: https://www.youtube.com/watch?v=Qf07-8Jhhpc Ionic Bonding #2: https://www.youtube.com/watch?v=5EwmedLuRmw Ionic Bonding #3: https://www.youtube.com/watch?v=RkZNYuSho0M
Terms in this set (20)
A chemical bond that forms when electrons are tranferred from one atom to another
Charged particles that form when atoms gain or lose electrons
What stays the same when an ionic bond forms?
The number of protons stays the same
When is an atom neutral?
When the number of protons and electrons are the same
When does an ion form?
When the number of protons and electrons is unequal
When does an ionic bond form between metals and nonmetals?
When the nonmetal releases more energy than is needed to take electrons from the metal
The regular pattern in which a crystal is arranged
When does a compound have a neutral charge?
When the charges of the ions cancel each other out
What are 3 properties of ionic compounds within a crystal lattice?
Brittleness, high melting points, and high boiling points
Atoms in which group will give away their valence electrons?
Groups 1-3 (will get a positive charge)
Atoms in which group will gain valence electrons?
Groups 5-7 (will get a negative charge)
What group will not give away their electrons? Why?
Group 18 will not give away any ve because their outer energy level is full
Which group will make covalent bonds?
Group 14 (will share electrons)
Why won't any elements from Group 18 make a bond?
They are already stable and have a octect of electrons(they do not need to gain any more valence electrons)
How to write ionic chemical formulas?
Ex. Rubidium (1) and Sulfur (2)
Rb 1+ S2-
2+ Formula: Rb2S
Where are the most active metals found on the Periodic Table?
The farthest away from Group 18 because they prefer to give away their electrons (low electronegativity)
Where are the most active nonmetals found on the Periodic Table?
Closest to Group 18 because they prefer to take in electrons (high electronegativity)
Explain when atoms will lose electrons and when they will gain them.
Groups 1-3: lose electrons
Groups 5-7: gain electrons
What does it mean when an atom is stable?
It has a full outer energy level
What are the charges of each group?
Alkali Metals: 1+
Alkaline Earth Metals: 2+
Boron Family: 3+
Nitrogen Family: 3-
Oxygen Family: 2-
(+=give away ve -=take in ve)
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