periodic table of elements - mr. d's fizzix pages · 2019-10-03 · 1.10. intro to periodic...
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1.10. Intro to periodic table and elements.notebook
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Periodic Table of Elements
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What is an element ?
ELEMENT: A pure substance that cannot be broken down into new substances. Each different element has its own unique kind of atom.
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Examples of ELEMENTS ...
sodium
gold
sulfur
bromine
phosphorus
carbon mercury
copper
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Everyone should get a copy of the Periodic Table.
Put your name at the top!
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IodineChange the symbol for iodine on the periodic table from
I I
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Find and write down the element symbol or element name for each of these. Put up and hold up your hand when finished.
1. Tl2. Sr3. Er4. Silver5. Molybdenum6. Gold
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Read pg. 58 (all) and pg. 59 (first paragraph) to help answer the following questions ...1. Define a "chemical symbol".
2. Why would chemists want to create symbols for elements? (2 reasons)
3. Why do you think we no longer use earlier symbols created by Dalton and Alchemists?
4. What do you notice about the upper/lower case of a letter(s) in symbols?
5. Most of the time the letter(s) of the symbol match the letters in the name. Why do some not match (ex: sodium = Na)?
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1. Define a "chemical symbol".An abbreviation of the name of an element2. Why would chemists want to create symbols for elements? (2 reasons) quicker the same symbol is used in different languages3. Why do you think we no longer use earlier symbols created by Dalton and Alchemists?Too hard to remember/difficult to use4. What do you notice about the upper/lower case of a letter(s) in symbols? First letter is always capital Second letter (if there is one) is always lower case5. Most of the time the letter(s) of the symbol match the letters in the name. Why do some not match (ex: sodium = Na)?Symbols were often based on the elements Latin or Greek name
1.10. Intro to periodic table and elements.notebook
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