PeriodicTable/Natali
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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| Periodic Table | the chart scientists use to organize and classify all the known elements
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| Element | a pure substance that cannot be broken down into simpler substances by chemical reactions
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| Element Symbol | a symbol that represents the element, usually one or two letters
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| Atomic Number | the number of protons in the nucleus of an atom; atomic number determines the chemical properties of the atom
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| Atomic Mass | The combined mass of all of the protons and neutrons of an atom. Since each proton and neutron has a mass of approximately one unit (called an atomic mass unit) the atomic mass is approximately equal to the number of protons and neutrons.
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| Period | a horizontal row on the periodic table
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| Group | a vertical column on the periodic table
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| Family | a group
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| Chemical Formula | a group of chemical symbols and numbers that shows the number of atoms of each element in a molecule
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| Metals | an element that conducts heat and electricity well, is shiny, and can be hammered into sheets or drawn into wires
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| Nonmetals | an element that does not conduct heat or electricity well and is dull and brittle or gaseous
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| Metalloids | an element that has some properties of both metals and nonmetals
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| Noble Gases | the six elemental gases that does not naturally react with other elements
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| Reactivity | the tendency of a substance to undergo chemical changes
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| Dmitri Mendeleev | Russian chemist who developed a periodic table of the chemical elements and predicted the discovery of several new elements
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| Trend(patterns on the periodic table) | specific patterns found in the periodic table, includes patterns in size and electronic properties
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| Energy Level | the energy level increases as the number of electrons increases and the atom needs more electron shells
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| Valence Electrons | an electron that is associated with an atom, and that can participate in the formation of a chemical bond
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| Chemical Property | a characteristic of a substance that cannot be observed without changing the identity oft he substance
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| Physical Property | a characteristic of a substance that can be observed directly or measured with a tool without changing the identity of the subsance
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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:
NatCal2020
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