Unit 3 Review Periodic Trends. How many valence electrons does aluminum have? 1. one 2. two 3. three 4. four.

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Presentation transcript:

Unit 3 Review Periodic Trends

How many valence electrons does aluminum have? 1. one 2. two 3. three 4. four

What period does sodium (Na) belong to? None of the above

Tell me 3 or 4 things about each element based on its position on the periodic table: Tell me 3 or 4 things about each element based on its position on the periodic table: #31 Gallium #31 Gallium 3 valence electrons in the 4 th energy level 3 valence electrons in the 4 th energy level metal metal #52 Tellurium #52 Tellurium 6 valence electrons in the 5 th energy level 6 valence electrons in the 5 th energy level metalloid metalloid # 2 Helium # 2 Helium 2 valence electrons in the 1 st energy level 2 valence electrons in the 1 st energy level Nonmetal Nonmetal Noble gas Noble gas

Which is the most important subatomic particle when determining an element’s chemical properties? 1. electrons 2. protons 3. neutrons 4. All are equal

Draw the Lewis Dot structures for the following elements: Be PO Al Br Al Br Volunteers for Board Work?

In order to fill its outermost energy level, fluorine will most likely: 1. gain electrons 2. lose electrons 3. gain protons 4. lose neutrons

What is the relationship between valence electrons and position on the periodic table? 1. similar period 2. similar group 3. similar atomic number 4. similar mass number

How many empty spaces in the outermost energy level does sulfur have? 1. one 2. two 3. six 4. seven

What do beryllium and calcium have in common? 1. same group 2. same number of valence electrons 3. all of the above

How many neutrons are present in an atom of carbon-14?

How many electrons does a Mg 2+ ion have?

What is the charge on a chlorine ion that has 18 electrons?

Family Name of group 17? 1. Alkali 2. Transition Metals 3. Group II - Metals 4. Noble Gases 5. Halogens

This family has 8 valence electrons? 1. Alkali 2. Transition Metals 3. Group II - Metals 4. Noble Gases 5. Halogens

The element silicon is an example of a … 1. Metal 2. Nonmetal 3. Metalloid

These are found on the far right side of the periodic table… 1. Metals 2. Nonmetals 3. Metalloids

Rank your use of the class website. 1. I don’t have access to the internet at home. 2. I don’t know how to get to the website. 3. I have access to the website but don’t find it helpful 4. I use it sometimes. 5. I use the website everyday.