Name an element in the third period (row) of the periodic table with
a. three valence electrons.
b. four 3p electrons.
c. six 3p electrons.
d. two 3s electrons and no 3p electrons.
Chapter 1 Chemistry- known as the study of matter and changes that it undergoes Matter- is anything that occupies space You occupy space therefore you are matter Substance- is a form of matter that has a definite composition Ex: water or gold Qualitative Information- characteristics that are different from each other, mostly physical If the end product is spikey looking versus something that is smooth looking Quantitative Information- information given in the form of numbers Ex. The height of an object Law of Conservation of Mass- this states that matter cannot be created or destroyed Scientific Law- a brief statement that summarizes a previous observation Theory- desc