Chemistry - part 2 - targets 3, 6 (a,b,c) & 7 (a, b, c) (periodic table)
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| How did Mendeleev organize the periodic table? | he lined up the known elements by atomic mass and noticed a repeating pattern of other chemical and physical properties. He placed thsoe elements in the same column (family).
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| What challenges did Mendeleev face when trying to organize the Periodic Table? | He did not know all the elements that existed and some of the information for the elements was incorrect.
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| Describe the pattern within the periodic table for atomic number. | increases by one as you move across a row (period).
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| Describe the pattern within the periodic table for atomic mass. | increases as you move across a row/period.
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| Describe the pattern within the periodic table for a period. | elements in a row increase in atomic number and mass
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| Describe the pattern within the periodic table for a family. | share similar chemical and physical properties.
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| By looking at the periodic table, how can you determine the atomic number? | It is the whole number
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| By looking at the periodic table, how can you determine the atomic mass? | It is the decimal number
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| By looking at the periodic table, how can you determine the element symbol | It is the largest letters
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| What is a period | a row on the periodic table
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| what is a family | a column on the periodic table
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| What is the atomic number for sodium? | 11
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| What is the atomic mass for fluorine? | 18.998
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| What is the chemical symbol for oxygen? | O
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| Which element has an atomic number of 26? | iron
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| Which element is in the same family as boron, aluminum or carbon? | aluminum
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| which element is in the same period as chlorine? | sulfur
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| Is potassium more like sodium or calcium? | sodium - in same family
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| which element has only one proton? | hyodrogen
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| which element has 10 protons? | neon
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| What are the three parts of an atom? | proton, neutron, electron
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| Where are the protons located? | nucleus
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| Where are the neutrons located? | nucleus
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| Where are the electrons located? | moving around the nucleus
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| What is the charge of a proton? | positive
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| What is the charge of a neutron? | Neutral
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| What is the charge of an electron? | negative
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| What makes one atom from one element different than an atom from a different element? (for example, one oxygen atom compared to a carbon atom) | the number of protons in the nucleus
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| What is atomic number? | number of protons
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| What are valence electrons? | the most loosely held electrons (farthest from nucleus)
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| What give an atom its mass? | protons + neutrons
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| What gives an atom its volume? | electrons
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| What type of observations do we make on atoms? | indirect observations
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| what is the pattern as you go across a period? | metal --> metalloid --> nonmetal
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To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
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Created by:
camponel
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