CHEM 111
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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| sub atomic particle | protons neutrons electrons
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| Proton | 1+ mass 1.672622x10^-24
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| neutron | 1.674927x10^-24
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| electron | 1- mass 9.109383x10^-27
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| atomic nucleus | small region of high density at the center of the atom
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| atomic mass unit | (u) is defined as 1/(total # of p+ and n)
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| ion | equal number of protons and electrons
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| cation | more protons than electrons
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| anion | more electrons than protons
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| isotopes | same atomic number (Z) but different mass numbers (A)
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| atomic weight | average mass of all naturally occurring isotopes of that element
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| alkali metals | shinny solids that react vigorously with air, water
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| alkaline earth metals | react with water from alkaline solutions and the noble gases
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| Noble gases | are the least reactive elements 8A
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| Halogens | the group 7A
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| transition metals | representive elements and elements in B groups
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| main group elements | elements in group A
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| Lanthanides and actinides | periods 6 and 7
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| metals and non metals | on the left side of the table and non metals on the right
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| allotropes | forms of the same element that differ in their physical and chemical properties
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| molecular formula | a molecular formula contains similar
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| Empirical formula | represents the simplest whole number ratio of elements
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| structural formula | shows the linkage of all the atoms in the molecule
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| condensed structural formula | CH3CH2CH2CH20H List the atoms present in groups to indicate connectivity between the atoms
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| polyatomic ions | are groups of covalently bonded atoms that carry an overall positive or negative charge
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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:
hrfalco
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