NATS 1870 Lecture Notes - Lecture 20: Atomic Number, Noble Gas, Fluorine

• School: York University
• Department: Natural Science
• Course: NATS 1870
• Professor: Banafsheh Hashemi Pour

Document Summary

Question 1: which of the following statements is not correct: elements consist of just one type of atom, molecules are two or more atoms bonded, compounds consist of elements, compounds consist of molecules. Elements consist of just one type of atom, this is correct (if we have more than that, it"s not just elements then) Molecules are two or more atoms bonded, this is correct. Compounds consist of elements, this is not correct, because if compounds consist of elements, then compound is just one type of atom, but it"s not, so it has more than one type of atom. Atoms and elements (what"s the relationship? how are they related?) Molecule (what is it? how is an atom and a molecule related) Compound (molecule and compound, element and a compound) Look at periodic table of elements (for every block or tile, section, represents a different element, and 116 or 117 different types of elements exist)