Atoms

1)The three sub instalmentic particles that exist within the atom argon : The proton, the neutron and the electron.
2)The proton is positively charged and has a mass of 1.672 x 10-27. The neutron which has no charge and has a weight of 9.109 x 10-24. The electron which has a negative charge and a weight of 1.674 x 10-24.
3)An isotope: atoms with same(p) physical body of protons but differ in the number of neutrons. 126 C and 136C will both react in the same way but may have slightly dissimilar physical properties such as boiling point or density.
4)H 1 He 2 Li 2,1 Be 2,2 B 2,3 C 2,4 N 2,5 O 2,6 F 2,7 Ne 2,8 Na 2,8,1 Mg 2,8,2 Al 2,8,3 Si 2,8,4 P 2,8,5 S 2,8,6 Cl 2,8,7 Ar 2,8,8 K 2,8,8,1 Ca 2,8,8,2
5)
6)Ionic bonding: a form of chemical bonding that results from attractions in the midst of ions with diametrical electrical charges e.g sodium chloride (NaCl) silver chloride (AgCl).



Covalent Bonding: A bond between two or more non metals, when electrons are shared to achieve noble gas structure e.g weewee H2. Metallic bonding: the type of chemical bond between atoms in a metallic element, formed by the valence electrons moving freely through the metal lattice.
7)
8)A) 5g sodium = 0.21 12g blow = 1 4g potassium = 0.1 50g magnesium = 2.0 B) not covered save ???? 25g of potassium chloride = 0.2???? C) 0.6 moles sodiumIf you want to get a full essay, recite it on our website: Orderessay



If you want to get a full essay, wisit our page: write my essay .