https://padlet.com/3013222/ovxbxdqcdjcz Made with serendipity en-us 2017-04-25 17:17:10 UTC 2025-10-04 05:28:20 UTC hello@padlet.com 3013222 https://padlet.com/3013222/ovxbxdqcdjcz/wish/168179664 Symbol:H Atomic number:1
With a standard atomic weight of circa 1.008, hydrogen is the lightest element on the periodic table]]> 2017-04-25 17:25:09 UTC https://padlet.com/3013222/ovxbxdqcdjcz/wish/168179664 3013222 https://padlet.com/3013222/ovxbxdqcdjcz/wish/168180278 Symbol:H Atomic number:2
It is a colorless, odorless, tasteless, non-toxic, inert, monatomic gas]]> 2017-04-25 17:26:52 UTC https://padlet.com/3013222/ovxbxdqcdjcz/wish/168180278 3013222 https://padlet.com/3013222/ovxbxdqcdjcz/wish/168180456 Atomic Number:3 Symbol:Li
t is a soft, silver-white metal belonging to the alkali metal group of chemical elements. ]]> 2017-04-25 17:27:24 UTC https://padlet.com/3013222/ovxbxdqcdjcz/wish/168180456 3013222 https://padlet.com/3013222/ovxbxdqcdjcz/wish/168180829 Atomic Number 4 Symbol:Be
 It is a relatively rare element in the universe]]> 2017-04-25 17:28:26 UTC https://padlet.com/3013222/ovxbxdqcdjcz/wish/168180829 3013222 https://padlet.com/3013222/ovxbxdqcdjcz/wish/168181238 Atomic number 8 Sym.O
It is a member of the chalcogen group on the periodic table]]> 2017-04-25 17:29:24 UTC https://padlet.com/3013222/ovxbxdqcdjcz/wish/168181238 3013222 https://padlet.com/3013222/ovxbxdqcdjcz/wish/168181704 Atomic number 6 Sym.C
 It is nonmetallic and tetravalent]]> 2017-04-25 17:30:43 UTC https://padlet.com/3013222/ovxbxdqcdjcz/wish/168181704 3013222 https://padlet.com/3013222/ovxbxdqcdjcz/wish/168182036 Atomic number 29 Sym.C
It is a soft, malleable, and ductile metal with very high thermal and electrical conductivity.]]> 2017-04-25 17:31:39 UTC https://padlet.com/3013222/ovxbxdqcdjcz/wish/168182036 3013222 https://padlet.com/3013222/ovxbxdqcdjcz/wish/168182334 Atomic Number:26 Sym.Fe
It is a metal in the first transition series]]> 2017-04-25 17:32:28 UTC https://padlet.com/3013222/ovxbxdqcdjcz/wish/168182334 3013222 https://padlet.com/3013222/ovxbxdqcdjcz/wish/168182608 Atomic number 30 Sym.ZN
It is the first element in group 12 of the periodic table.]]> 2017-04-25 17:33:12 UTC https://padlet.com/3013222/ovxbxdqcdjcz/wish/168182608 3013222 https://padlet.com/3013222/ovxbxdqcdjcz/wish/168182807 Atomic number 50 Sym.Sn
It is obtained chiefly from the mineral cassiterite, which contains tin dioxide, SnO₂]]> 2017-04-25 17:33:47 UTC https://padlet.com/3013222/ovxbxdqcdjcz/wish/168182807 3013222 https://padlet.com/3013222/ovxbxdqcdjcz/wish/168183059 Atomic number 10 Sym.NE
Neon is a colorless, odorless, inert monatomic gas under standard conditions, with about two-thirds the density of air. ]]> 2017-04-25 17:34:29 UTC https://padlet.com/3013222/ovxbxdqcdjcz/wish/168183059 3013222 https://padlet.com/3013222/ovxbxdqcdjcz/wish/168183236 Atomic number 11 Sym.11
It is a soft, silvery-white, highly reactive metal.]]> 2017-04-25 17:34:53 UTC https://padlet.com/3013222/ovxbxdqcdjcz/wish/168183236 3013222 https://padlet.com/3013222/ovxbxdqcdjcz/wish/168183559 Atomic Number 13 Sym.Al
It is a silvery-white, soft, nonmagnetic, ductile metal.]]> 2017-04-25 17:35:45 UTC https://padlet.com/3013222/ovxbxdqcdjcz/wish/168183559 3013222 https://padlet.com/3013222/ovxbxdqcdjcz/wish/168183837 Atomic Number 18 Sym.Ar
Argon is the third-most abundant gas in the Earth's atmosphere, at 0.934%]]> 2017-04-25 17:36:32 UTC https://padlet.com/3013222/ovxbxdqcdjcz/wish/168183837 3013222 https://padlet.com/3013222/ovxbxdqcdjcz/wish/168184013 Atomic Number 16 Sym.S
Under normal conditions, sulfur atoms form cyclic octatomic molecules with a chemical formula S₈.]]> 2017-04-25 17:37:02 UTC https://padlet.com/3013222/ovxbxdqcdjcz/wish/168184013 3013222 https://padlet.com/3013222/ovxbxdqcdjcz/wish/168184228 Atomic number 27 Sym.CO
Like nickel, cobalt is found in the Earth's crust only in chemically combined form, save for small deposits found in alloys of natural meteoric iron.]]> 2017-04-25 17:37:44 UTC https://padlet.com/3013222/ovxbxdqcdjcz/wish/168184228 3013222 https://padlet.com/3013222/ovxbxdqcdjcz/wish/168184464 Atomic number 47 Sym.Ag
Its symbol is Ag, from the Latin argentum, derived from the Greek ὰργὀς, and ultimately from a Proto-Indo-European language root reconstructed as *h₂erǵ-, "grey" or "shining".]]> 2017-04-25 17:38:27 UTC https://padlet.com/3013222/ovxbxdqcdjcz/wish/168184464 3013222 https://padlet.com/3013222/ovxbxdqcdjcz/wish/168184703 Atomic number 58 Sym.Ce

]]> 2017-04-25 17:39:01 UTC https://padlet.com/3013222/ovxbxdqcdjcz/wish/168184703 3013222 https://padlet.com/3013222/ovxbxdqcdjcz/wish/168184948 Atomic Number 36 Sym.Kr
Superman's weakness]]> 2017-04-25 17:39:40 UTC https://padlet.com/3013222/ovxbxdqcdjcz/wish/168184948 3013222 https://padlet.com/3013222/ovxbxdqcdjcz/wish/168185409 Atomic number 54 Sym.Xe

]]> 2017-04-25 17:40:37 UTC https://padlet.com/3013222/ovxbxdqcdjcz/wish/168185409 3013222 https://padlet.com/3013222/ovxbxdqcdjcz/wish/168185826 Atomic number 79 Sym.Au
Chemically, gold is a transition metal and a group 11 element]]> 2017-04-25 17:41:39 UTC https://padlet.com/3013222/ovxbxdqcdjcz/wish/168185826 3013222 https://padlet.com/3013222/ovxbxdqcdjcz/wish/168186029 Atomic number 82 Sym.Pb]]> 2017-04-25 17:42:11 UTC https://padlet.com/3013222/ovxbxdqcdjcz/wish/168186029 3013222 https://padlet.com/3013222/ovxbxdqcdjcz/wish/168186217 Atomic number 92 Sym.U
A uranium atom has 92 protons and 92 electrons, of which 6 are valence electrons.]]> 2017-04-25 17:42:43 UTC https://padlet.com/3013222/ovxbxdqcdjcz/wish/168186217 3013222 https://padlet.com/3013222/ovxbxdqcdjcz/wish/168186509 Atomic number 80 Sym.Hg
It is commonly known as quicksilver and was formerly named hydrargyrum]]> 2017-04-25 17:43:25 UTC https://padlet.com/3013222/ovxbxdqcdjcz/wish/168186509 3013222 https://padlet.com/3013222/ovxbxdqcdjcz/wish/168186723 Atomic number 86 Sym.Rn
 It is a radioactive, colorless, odorless, tasteless noble gas.]]> 2017-04-25 17:43:57 UTC https://padlet.com/3013222/ovxbxdqcdjcz/wish/168186723 3013222 https://padlet.com/3013222/ovxbxdqcdjcz/wish/168187003 Atomic number 53 Sym.I
The heaviest of the stable halogens,]]> 2017-04-25 17:44:41 UTC https://padlet.com/3013222/ovxbxdqcdjcz/wish/168187003 3013222 https://padlet.com/3013222/ovxbxdqcdjcz/wish/168187254 Atomic number 56 Sym.Ba
barium is never found in nature as a free element.]]> 2017-04-25 17:45:22 UTC https://padlet.com/3013222/ovxbxdqcdjcz/wish/168187254 3013222 https://padlet.com/3013222/ovxbxdqcdjcz/wish/168187726 Atomic number 32 Sym.Ge
It is a lustrous, hard, grayish-white metalloid in the carbon group, chemically similar to its group neighbors tin and silicon.]]> 2017-04-25 17:46:38 UTC https://padlet.com/3013222/ovxbxdqcdjcz/wish/168187726 3013222 https://padlet.com/3013222/ovxbxdqcdjcz/wish/168187942 Atomic number 33 Sym.AS
Arsenic is a metalloid

]]> 2017-04-25 17:47:12 UTC https://padlet.com/3013222/ovxbxdqcdjcz/wish/168187942 3013222 https://padlet.com/3013222/ovxbxdqcdjcz/wish/168188530 Atomic number 109 Sym.Mt
It is an extremely radioactive synthetic element]]> 2017-04-25 17:48:49 UTC https://padlet.com/3013222/ovxbxdqcdjcz/wish/168188530