on page 51 it says marc wants to represent each of the other age groups with a decimal as well
The answer will depend entirely on the question which has not been given.
16 people
50
dfsf
People would be glad to help you in math, but it would be great if you told us the problem.
sorry. dont have the textbook
The answers can not be given. You need to do the work, so get to work.
They are found in the green background of the periodic table.
math
You turn the page.
Look at page 456
It stated that: The physical and chemical properties of elements are periodic functions of their atomic numbers.
I do not have your textbook. Either you have one or you know someone (e.g. classmate) who has one. Therefore you are more likely to encounter the textbook than I am, so I will leave it to you to find the questions..... sorry.
Fail that is so easy
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)