What Group Are You In?
It's All About the Electrons
Modern Family
Old School
This and That
100
The order of the element on the modern periodic table is based on number of __?__. This number is represented by the term _?_ and the symbol _?_
1. Protons in the nucleus 2. Atomic Number 3. Z
100
Atoms of elements that are in the same group (vertical column) have the same number of _?_. Groups are also called _?_. Elements in the same group, have similar _?_
1. Valence electrons 2. Families 3. Chemical properties
100
Carbon and other nonmetals are found in this general area of the modern periodic table: _?_. As you move from left to right across the periodic table, what happens to the number of protons? _?_. As you move from left to right across the periodic table, do elements become more or less metallic? _?_
1. on the right side 2. number of protons increases 3. Less metallic
100
How was Mendeleev's period's table arranged? _?_. When did Mendeleev create a new row on his periodic table? _?_
1. By increasing atomic mass 2. When chemical properties were repeated.
100
Let's do some math! You'll need the periodic table in the back of your textbook and a calculator. Calculate the molar mass of each of the following: 1. scandium 2. Zinc 3. Sulfuric acid (H2SO4)
1. 44.96 g.mol; Sc on the periodic table; 44.956 rounds to 44.96 2. 65.39 g/mol; Zn on the periodic table; 3. 98.09 g/mol; 2 Hydrogens (1.01 x2) + 1 Sulfur (32.07) + 4 Oxygen (16.00 x 4) = 98.09
200
What group number contains the Alkali Metals? _?_. How many valence e- do they contain _?_. What kind of ions can alkali metals form_?_.
1. Group 1 (except for Hydrogen). 2. 1 valence electron 3. Cations (positive, because they give their one valence e- away, so now there are more protons than electrons)
200
What is the location of elements in the periodic table RELATED to? _?_ Ionization refers to the process of gaining or losing _?_. As these subatomic particles are lost, _?_ are formed.
1. electron arrangement 2. electrons 3. ions
200
Elements that have _?_ valence electron (like sodium) tend to be highly reactive and form cations. Group seventeen elements, like chlorine, have _?_ valence electrons, so they tend to form _?_.
1. One valence electron 2. Seven valence electrons 3. Anions (negative ions)
200
One of the most important things about Mendeleev's periodic table was that he was able to _?_.
Predict new elements.
200
Using your calculator and a piece of scratch paper, solve the following: 1. Convert 48 days into seconds 2. Calculate the density of a substance with a mass of 185g and a volume of 14 mL. (D= m/v)
1. (48 days/1) x (24 hours /1 day) x (3600 min/1 hour) = 4,147,200 Seconds 2. Givens: mass = 1865 g, Volume = 14 mL; Formula: D = m/v; show your work: 185g/14 mL; answer: 13.21 g/mL
300
_?_ are elements that can conduct heat and electricity under certain (some) conditions. The most famous element under this classification is _?_. This element is found in technology such as _?_
1. Semiconductors 2. Silicon 3. Computers
300
Because atoms of elements in the same group of the periodic table have the same number of _?_, they have similar _?_ and _?_ properties.
1. valence 2. and 3. chemical and physical
300
Name the 3 general types of elements on the periodic table: _?_. Name the families (with their group number) that we discussed in class: _?_
1. Metals, nonmetals, semiconductors (metalloids) 2. Group 1 = alkali metals; Group 2 = Alkaline Earth Metals; Groups 3-12 = Transition Metals; Group 17 = Halogens; Group 18 = Noble gases
300
Use your calculator and periodic table to solve the following: What is the mass of .75 mol of sulfur?
Givens: Amount = .75 mol; Molar Mass = 32.10 g/mol; Mol = _?_; ( .75 mol/1) x (32.10 g/ 1 mole) = 24.08 g
400
Elements in group _?_ are called noble gases because they tend to be unreactive and do not exist as molecule, but as single atoms. Another term which means, "inactive" is _?_. The reason that neon is unreactive is that it's _?_ is full of electrons
1. Group 18 2. inert 3. outer energy level
400
Noble gases are found in group _?_ of the periodic table. This means that each noble gas (except for Helium, which is very small) have _?_ valence electrons. Because noble gases are stable (unreactive), they don't normally form _?_
1. Eighteen 2. Eight 3. Molecules
400
Halogens, found in group _?_, tend to form compounds by _?_
1. Group 17 2. Becoming anions (gaining electrons to become a negative ion)
400
Mendeleev's table and the periodic table are both arranged in such a way that elements with similar _?_ appear at regular intervals. This is called _?_ law
1. properties 2. periodic
400
Use your periodic table and your calculator to solve the following: How many moles of H2SO4 are in 4523.45 g?
Givens: Amount: _?_, mass = 4523.45 g; molar mass = 98.09 g/mol. Conversion factor: 1 mol = 98.09 g; Show your work: (4523.45 g/1) x (1 mol/98.09g) = 46.12 mol
500
A group's elements behave similarly because of their _?_. Some elements are highly _?_ because their outermost energy levels are only partially filled. The stable number is _?_.
1. Number of valence electrons 2. reactive 3. eight
500
A lithium ion is much less reactive than a lithium atom because it has _?_ its outer s orbital
1. filled
500
Most elements on the periodic table have the general classification of a(n): _?_. List several characteristics of these element: _?_
1. Metals 2. Shiny, malleable, ductile, good conductors of heat ad electricity
500
Non-metals are found in this general area of the periodic table _?_. List several characteristics of non-metals _?_
1. right hand side 2. brittle if solid, poor conductors of heat and electricity (so we call them insulators);
500
To do well on this test I should study _?_
Graded homework, quizzes, and labs; Chapter 5 in the textbook, Chapter 5 review sheet; this game.
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