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Who am I?
Metals vs. Nonmetals
Elements vs. Compounds
Chemical Formulas
The Periodic Table
100
Element number 25
Manganese
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Metals are found on what side of the periodic table?
Left side
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What is an element?
A substance made up of only one type of atom and cannot be broken down to a simpler substance.
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The letters used in chemical formulas are used to represent?
Elements
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The periodic table is made up of?
Elements Metals, nonmetals, metalloids
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Period 4 Group 2
Calcium
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Metals and nonmetals are separated on the periodic table by?
Metalloids
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A compound must have a minimum of __________ elements?
Two
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The subscript numbers in chemical formulas are used to represent?
The number of atoms of that particular element.
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All periodic tables have 2 similar features?
1. They look like a chart. 2. Each square contains information about ONE element.
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Row 3 Column 13
Aluminum
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If I am a gas, I must be a metal or a nonmetal?
Nonmetal
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Element or compound? CH4
Compound
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The subscript letters in chemical formulas are used to represent?
The state of matter
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Another name for groups is? Another name for periods is?
Columns Rows
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Group 7 Row 4
Manganese
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What are the 4 properties of metals and nonmetals?
Metals - conduct electricity and heat, solid, easily shaped, metallic shine. Nonmetals - insulators of electricity and heat, solid or gas, brittle, various colours (dull)
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Distilled water is an element or a compound? Give an example of the opposite?
Water is a compound. Element is the opposite; an example is hydrogen.
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What are the elements in this chemical formula? C6H12O6
Carbon Hydrogen Oxygen
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As you move from left to right, elements on the table increase or decrease in mass?
Increase
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I am found in period 6 with an element number of 63.
Europium
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Which elements are exceptions to the state of matter property for metals and nonmetals?
Metals - mercury is liquid (not solid) Nonmetals - bromine is liquid (not solid or gas)
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Compounds can be broken down through what type of reaction?
Decomposition reaction
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Provide the information for NaC5H8NO4 (g) 1. What are the elements? 2. How many atom of each element? 3. What are the total number of atoms for the compound? 4. What is the state?
1. Sodium, carbon, hydrogen, nitrogen, oxygen 2. Sodium (1), carbon (5), hydrogen (8), nitrogen (1), oxygen (4) 3. 19 atoms total 4. Solid
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What information is provided about each element on the periodic table?
Element name Element symbol Element number Mass State of matter (at room temperature and normal pressure)