Terminology
Periodic table
???
Who is first discovered Phosphorus?
Hennig Brand
Horizontal rows are called ......
PERIODS
The structure of Law of Octaves?
do re mi fa so la ti
The elements in the short periods constitute almost ??? of the earth's crust, oceans and atmosphere.
97%
Occur
таралу/встречаться
Who distinguished between metals and nonmetals?
Antoine Lavoisier
There are how many periods? and say them
7 : short, medium and long
Who is the Russian chemist?
Dmitriy Mendeleev
Vertical columns are numbered in which language?
Arabic
Trace amount
аз мөлшерде/ незначительное количество
What is the work of Johann Dobereiner?
began to group elements with similar properties into groups into groups of three or triads.
Vertical columns are called ...
groups or family
Determine the period numbers of the following elements:
Nitrogen, copper, calcium
all of them are located in 4th peroid
What is the difference between periods and groups in the Periodic table?
horizontal and vertical located
to distinguish
айыру/различать
Who proposed the Law of Octaves?
John Newlands
How many elements in 4th and 5th period?
18
Determine the group numbers of the following elements:
Gold, phosphorus, zinc
Gold 11
phosphorus 15
zinc 12
How many groups are in the Periodic table?
18
to arrange
орналастыру/ расположить
names of the 2 famous scientists who worked on periodic table.
Dmitriy Mendeleev and Lothar Meyer
Periods are beginning with ... and ending with a ...
metal / noble gas
The composition of periodic table.
How many horizontal rows and vertical columns?
12 horizontal rows
8 vertical columns
Give some examples for special names of the groups.
group 1- alkali metals, group 2- alkaline earth metals, group 14- carbon family, group 17- halogens, group 18- noble gases.