Unit 4 vocab for lewis
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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| Atomic Mass | Average mass of one atom of an element.
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| Periodic table | A table where all element are arranged into periods and groups.
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| Chemical symbol | One or two letter that stands for an element.
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| Period | A row of elements in the periodic table arranged by atomic number.
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| Group | A column of elements in the periodic table, in which elements have certain preperties in common.
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| Matter | The material that all objects and substances are made of.
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| Element | Substances that are the building blocks of all matter
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| Compound | Matter made of two or more elements.
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| Atom | Smallest particle inot which on element can be divided and still have the preperties of that element.
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| Electron | Negatively charged particle found outside the nucleus of an atom.
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| Nucleus | Structure near the center of a cell that contains the cells DNA.
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| Proton | A small, positively charged particle in the nucleus of the atom
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| Neutron | A cell that carries information through the nervous system
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| Energy level | The amount of energy carried by an electrons in an atom
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| Isotope | Atoms of the same element with different number of neutrons in the nucleus
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| Mass number | The sum of protons and neutrons in the nucleus of an atom
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| Atomic number | Number of pretons in the nucleus of one atom of an element
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| Metals | Elements, usually solids, with a shiny surface
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| Malleable | A term used to discribe material
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| Ductile | Material that can be pulled out into a long wire
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| Conductivity | Transfer of heat from a warmer substance to a cooler substance through direct contact
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| Reactivity | The state or power of being reactive or the degree to which a thing is reactive
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| Corrosion | Some metal react with oxygen to in the air
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| Akali metals | A group of elements in group 1
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| Akali earth metal | An element in group 2
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| Alloy | A mixture of one or more elements
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| Nonmetal | An elementthat lacks most of the properties of a metal
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| Diatomic molecule | A molecule consisting of two atoms
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| Halogens | Elements in group 7A
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| Nobel gases | Elements in group 8A
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| Metaloid | Elements that has some characteristics of both metal and nonmetal
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| Semiconductor | A substance that can conduct electricity
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Review the information in the table. When you are ready to quiz yourself you can hide individual columns or the entire table. Then you can click on the empty cells to reveal the answer. Try to recall what will be displayed before clicking the empty cell.
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.
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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