Simple Molecular Substances 0.0 / 5 ? ChemistryStructure and bondingGCSEAQA Created by: Jack BaynesCreated on: 11-10-18 17:54 Name simple molecular substances Hydrogen, Oxygen, Nitrogen, Chlorine, Methane, Hydrogen Chloride, Water 1 of 13 Why H______? Hydrogen has one electron and needs ONE more to complete valence shell. SINGLE covalent bonds formed 2 of 13 Why O_____? Each oxygen needs TWO more electrons to complete an outer shell. DOUBLE covalent bond formed 3 of 13 Why N_______? Nitrogen needs THREE more electrons. TRIPLE BOND (three pairs of electrons) 4 of 13 Why C_______? ONE more electron needed. SINGLE covalent bond 5 of 13 Why M______? FOUR covalent bonds can be formed from carbon's four valence electrons 6 of 13 Why W____? TWO single covalent bonds 7 of 13 Why H_______ ________? SINGLE covalent bonds 8 of 13 Forces of attraction are... ...WEAK 9 of 13 Melting points are... ...VERY LOW, due to weak INTERMOLECULAR forces 10 of 13 Bigger the molecules... ...the STRONGER the INTERMOLECULAR forces 11 of 13 They are... ...GASES or LIQUIDS at room temperature 12 of 13 Conduct Electricity? No, due to no CHARGE 13 of 13
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