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
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)
The Nelson Science Textbook of Grade 9 for Ontario states that Mendeleev's periodic table on pages 126-127 includes elements arranged by increasing atomic mass and grouped with similar properties. Mendeleev left gaps for undiscovered elements and predicted the properties of these missing elements based on the pattern of the known elements.
told me what to do
this is an inappropriate question
poppy
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".
Tye Nelson is 5' 9".
Darrin Nelson is 5' 9".
Nelson Mandelas father
Nelson Mandelas father