People would be glad to help you in math, but it would be great if you told us the problem.
told me what to do
poppy
A polygon with 9 vertices is a nonagon.
My math book is about 11 inches in length and 9 inches wide.
9 is 1/8 of 72
They are found in the green background of the periodic table.
It stated that: The physical and chemical properties of elements are periodic functions of their atomic numbers.
Alkali metals have one electron that is an unstable arrangement in the outer orbit so they tend to lose this electron. It becomes ions with a charge of+1. (Answer from page#111 in the Grade 9 Nelson Science Textbook)Halogens have seven electrons in the outer orbit which gain one electron in order to have a stable arrangement of electrons. It becomes ions with a charge of-1. (Answer from page#112 in the Grade 9 Nelson Science Textbook)
Mendeleev stated on his periodic table that: If the elements are arranged according to their atomic mass, a pattern can be seen in which similar properties occur regularly.
chlorophyll. nelson science textbook grade 9
told me what to do
this is an inappropriate question
poppy
The elements are simply Tellurium and Iodine that didn't obey Mendeleev's law because the elements' atomic mass are not following along on the fifth row or period of the normal periodic table today's use.
The nucleolus, or C), if you're trying to answer Q.7 in the BC Science Probe 9 textbook on page 145
The difference between a period and a group is that:A periodic is a horizontal row of elements in the periodic table, which simply means the column of the periodic table.A group is a vertical row of elements in the periodic table, which simply means the row of the periodic table.
Nelson Shulman is 5' 9".