section 3: atoms and 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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| An element that is malleable, ductile, has luster, and is a good conductor of heat and electricity is called what? | metal
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| A row of elements whose properties change gradually and predictably is also known as what? | period
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| A column of elements that have similar physical or chemical properties is also known as what? | group
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| The most chemically inactive group of elements (very stable) are called_______ | nobel gases
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| Elements that are gases or brittle solids and poor conductors of heat and electricity are called what? | non metals
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| Which element has the fewest number of protons? | helium
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| Which element has an average atomic mass of 12? | carbon
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| Which element's nucleus contains 11 protons? | sodium
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| list and describe the 3 parts of an atom | Proton- found in nucleus, positive charge. neutron-found in nucleus, neutral charge. electron-found in electron cloud, negative charge.
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| what are some properties of a nonmetal? | brittle solids, gases, poor conductors of heat and electricity.
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| Which element has similar properties to boron? | aluminum
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| how are elements on the periodic table arranged? | in order by their atomic numbers.
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| based on partial periodic table above, what elements are metals (remember what side metals are on)? | lithium, berylium, aluminum, sodium, magnesium, potassium, calcium.
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| what is the atomic mass of an element equal to? | the number of protons and neutrons.
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| number 47 can not be typed here. | number 47 cannot be typed here.
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| an atom of nickel has an atomic # of 28. it has an atomic mass of 59. tell how many protons, neutrons, and electrons. | 28 protons, 28 neutrons, 31 electrons.
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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.
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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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