https://padlet.com/301243/7ciffsfluxfn en-us 2017-04-25 20:36:42 UTC 2017-04-26 21:10:12 UTC hello@padlet.com 301243 https://padlet.com/301243/7ciffsfluxfn/wish/168235758 Hydrogen is present in all organic compounds

]]> 2017-04-25 20:52:48 UTC https://padlet.com/301243/7ciffsfluxfn/wish/168235758 301243 https://padlet.com/301243/7ciffsfluxfn/wish/168236017 Aluminium is an abundant element in the earth's crust, but it is not found free in nature.

]]> 2017-04-25 20:54:20 UTC https://padlet.com/301243/7ciffsfluxfn/wish/168236017 301243 https://padlet.com/301243/7ciffsfluxfn/wish/168236972 Iron is a relatively abundant element in the universe. It is found in the sun and many types of stars in considerable quantity.

]]> 2017-04-25 21:00:05 UTC https://padlet.com/301243/7ciffsfluxfn/wish/168236972 301243 https://padlet.com/301243/7ciffsfluxfn/wish/168237688 Calcium as the element is a grey silvery metal. The metal is rather hard. 

]]> 2017-04-25 21:04:23 UTC https://padlet.com/301243/7ciffsfluxfn/wish/168237688 301243 https://padlet.com/301243/7ciffsfluxfn/wish/168237906 Ruthenium, rhodium, palladium, osmium, iridium, and platinum together make up a group of elements referred to as the platinum group metals (PGM).

]]> 2017-04-25 21:05:47 UTC https://padlet.com/301243/7ciffsfluxfn/wish/168237906 301243 https://padlet.com/301243/7ciffsfluxfn/wish/168238089 Carbon is present as carbon dioxide in the atmosphere and dissolved in all natural waters

]]> 2017-04-25 21:07:27 UTC https://padlet.com/301243/7ciffsfluxfn/wish/168238089 301243 https://padlet.com/301243/7ciffsfluxfn/wish/168238267 Nitrogen makes up about 78% of the atmosphere by volume but the atmosphere of Mars contains less than 3% nitrogen. 

]]> 2017-04-25 21:08:43 UTC https://padlet.com/301243/7ciffsfluxfn/wish/168238267 301243 https://padlet.com/301243/7ciffsfluxfn/wish/168238403 Chlorine is a respiratory irritant. The gas irritates the mucous membranes and the liquid burns the skin

]]> 2017-04-25 21:09:44 UTC https://padlet.com/301243/7ciffsfluxfn/wish/168238403 301243 https://padlet.com/301243/7ciffsfluxfn/wish/168498252 Lithium is a Group 1 (IA) element containing just a single valence electron (1s²2s¹)

]]> 2017-04-26 20:35:38 UTC https://padlet.com/301243/7ciffsfluxfn/wish/168498252 301243 https://padlet.com/301243/7ciffsfluxfn/wish/168498680 Most metals are metallic grey or silvery white whereas gold is characteristically a metallic yellow color, in other words gold-colored.

]]> 2017-04-26 20:38:18 UTC https://padlet.com/301243/7ciffsfluxfn/wish/168498680 301243 https://padlet.com/301243/7ciffsfluxfn/wish/168499142 Boron is a Group 13 element that has properties which are borderline between metals and non-metals (semimetallic)

]]> 2017-04-26 20:41:04 UTC https://padlet.com/301243/7ciffsfluxfn/wish/168499142 301243 https://padlet.com/301243/7ciffsfluxfn/wish/168499513 Silicon is present in the sun and stars and is a principal component of a class of meteorites known as aerolites

]]> 2017-04-26 20:43:11 UTC https://padlet.com/301243/7ciffsfluxfn/wish/168499513 301243 https://padlet.com/301243/7ciffsfluxfn/wish/168499699 Zinc-deficient animals require 50% more food to gain the same weight of an animal supplied with adequate amounts of zinc

]]> 2017-04-26 20:44:35 UTC https://padlet.com/301243/7ciffsfluxfn/wish/168499699 301243 https://padlet.com/301243/7ciffsfluxfn/wish/168499893 Platinum is a beautiful silvery-white metal, when pure, and is malleable and ductile.

]]> 2017-04-26 20:46:03 UTC https://padlet.com/301243/7ciffsfluxfn/wish/168499893 301243 https://padlet.com/301243/7ciffsfluxfn/wish/168500133 Nickel is found as a constituent in most meteorites and often serves as one of the criteria for distinguishing a meteorite from other minerals.

]]> 2017-04-26 20:48:02 UTC https://padlet.com/301243/7ciffsfluxfn/wish/168500133 301243 https://padlet.com/301243/7ciffsfluxfn/wish/168500359 Potassium is a metal and is the seventh most abundant and makes up about 1.5 % by weight of the earth's crust

]]> 2017-04-26 20:49:49 UTC https://padlet.com/301243/7ciffsfluxfn/wish/168500359 301243 https://padlet.com/301243/7ciffsfluxfn/wish/168500617 Copper appears in the periodic table at the top of Group 11 above silver and gold.

]]> 2017-04-26 20:51:34 UTC https://padlet.com/301243/7ciffsfluxfn/wish/168500617 301243 https://padlet.com/301243/7ciffsfluxfn/wish/168501058 Neon is a very inert element. Neon forms an unstable hydrate. In a vacuum discharge tube, neon glows reddish orange

]]> 2017-04-26 20:54:55 UTC https://padlet.com/301243/7ciffsfluxfn/wish/168501058 301243 https://padlet.com/301243/7ciffsfluxfn/wish/168501263 Argon is a colourless and odourless gas present to a very small extent in the atmosphere. 

]]> 2017-04-26 20:56:35 UTC https://padlet.com/301243/7ciffsfluxfn/wish/168501263 301243 https://padlet.com/301243/7ciffsfluxfn/wish/168501570 Titanium s a lustrous, white metal when pure. Titanium minerals are quite common. 

]]> 2017-04-26 20:59:11 UTC https://padlet.com/301243/7ciffsfluxfn/wish/168501570 301243 https://padlet.com/301243/7ciffsfluxfn/wish/168501813 Ordinary tin is a silvery-white metal, is malleable, somewhat ductile, and has a highly crystalline structure.

]]> 2017-04-26 21:01:03 UTC https://padlet.com/301243/7ciffsfluxfn/wish/168501813 301243 https://padlet.com/301243/7ciffsfluxfn/wish/168502054 Helium is one of the so-called noble gases. Helium gas is an unreactive, colourless, and od

ourless monoatomic gas

]]> 2017-04-26 21:03:15 UTC https://padlet.com/301243/7ciffsfluxfn/wish/168502054 301243 https://padlet.com/301243/7ciffsfluxfn/wish/168502313 Mercury is the only common metal liquid at ordinary temperatures. 

]]> 2017-04-26 21:05:45 UTC https://padlet.com/301243/7ciffsfluxfn/wish/168502313 301243 https://padlet.com/301243/7ciffsfluxfn/wish/168502742 At ordinary temperatures radon is a colourless gas. When cooled below the freezing point, radon exhibits a brilliant phosphorescence which becomes yellow as the temperature is lowered and orange-red at the temperature of liquid air. 

]]> 2017-04-26 21:09:28 UTC https://padlet.com/301243/7ciffsfluxfn/wish/168502742