AB |
Period.
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horizontal heat in the routine table who properties readjust gradually and predictable |
Group. | family of aspects in the periodic table that have similar physical or chemical properties. |
Representative elements. | elements in groups 1 and 2 and also 13 - 18 in the regular table that incorporate metals, metalloids, and nonmetals. |
Transition elements. | elements in teams 3 -12 in the regular table, all of which space metals. |
Metal. | element that has luster, is malleable, ductile, and a good conductor that heat and also electricity. |
Nonmetals. | element that is normally a gas or brittle solid at room temperature and is a poor conductor that heat and electricity. |
Metalloid. | element the shares part properties v both metals and nonmetals. |
Alkali metals. | elements in team 1 the the regular table. |
Alkaline earth metals. | elements in team 2 of the periodic table. |
Semiconductor. | element the does not conduct electricity and a metal however conducts it better than a nonmetal. |
Halogens. | any element in team 17 that the regular table. |
Noble gases. | elements in team 18 the the periodic table. |
Catalyst. | substance that increases a chemical reaction yet is not used up itself or permanently changed. |
Lanthanides. | the an initial series of inner transition elements which goes from cerium to lutetium. |
Actinides. | the 2nd series that inner change elements i beg your pardon goes native thorium come lawrencium. |
Synthetic elements. | are make in laboratories and also nuclear reactors. |
Which groug indigenous the regular table combines most readily with other elements to kind compounds? | alkali metals integrate most easily |
Name three elements in the iron triad. | nickel, cobalt, and iron |
Which aspect is situated in group 8, period 6? | Osmium |
Name three transition elements. | gold, silver, and copper |
Which group on the periodic table consists of only nonmetals? | Group 18 |
Which element is most likely to be consisted of in a substance v a brilliant yellow color? | chromium |
Which halogen is radioactive? | astatine |
Give a word that defines the aspect tellurium. | this is a metalloid |
A brittle, non-conducting, solid might belong come which group? | oxygen group |
Why is it vital the mercury be retained out of streams and also waterways? | It is poisonous and can death organisms the live in waterways. |
Would fluorine be a an excellent choice because that combining v the noble gas argon? | Yes; that is the many reactive nonmetal. |
Element. | a substance the cannot be damaged down into less complicated substances. |
Mass number. | the amount of neutrons and protons in the cell nucleus of an atom. |
Atomic number. | the number of protons in the nucleus of a given element. |
Figure 3. Facets Examples. | Boron. Carbon. Copper. |
Boron. A metalloid. | has slight luster and also conducts power at high temperatures prefer metal.But prefer a nonmetal,boron is brittle and does no conduct electrical energy well at short temperatures. |
Carbon. A nonmetal. | In graphite, carbon is a soft,brittle solid.It is reflective,ductile,or malleable. |
Copper. A metal.
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| is reflective,ductile.malleable,and a great conductor that heat and also electricity. |