Over a million students use our free study notes to help them with their homework
Nitrogen makes 3 covalent bonds. It is in the second period of the periodic table and so has its outer electron in the second shell/energy level. This shell requires eight electrons in order to be filled....
We see two numbers given for the description of an atom on the periodic, one larger than the other. The larger number is in reference to the atomic mass of the atom, which is the sum of the number of prot...
KeypointsEach diamond carbon is covalently bonded to 4 other carbonsEach graphite carbon is covalently bonded to 3 other carbonsDiamond is very hard due to its tertrahedral structureGraphite is made up of...
a) Ionisation energy is the minimum amount of energy required to remove an electron from each atom of one mole of gaseous atoms.b) Across a period, the ionisation energy increases due to the increas...
As you go down the group, ionisation energy decreases because there are more electron shells and shielding increases, therefore the outer electron is further away from the positive nucleus and is less str...
←
13
14
15
16
17
→
Internet Safety
Payment Security
Cyber
Essentials
