They have high melting and boiling points and are hard and brittle
This is not the best way to organize a periodic table because two elements might have similar atomic mass.
<h3>What is periodic table?</h3>
Periodic table is a chart in which arrangement of chemical elements are done.
In the early periodic table elements are arranged on the basis of their atomic masses, while after sometime Moseley arranged the periodic table on the basis of atomic number as he proposed that properties of an element is justified on the basis of number if electrons.
And mass of two substances may be same so it is difficult to differentiate between them.
Hence, two elements might have similar atomic mass.
To know more about periodic table, visit the below link:
brainly.com/question/14514242
#SPJ1
Answer: All are correct except for "carries energy only through matter
Explanation: E2020
Answer:
True
Explanation:
The molecule CH20 contains two single bonds and one double bond.
Well, 2 litres is 2 kilograms. 1000 grams = 1 kilogram
So that means that 2 litres of water = 2000 grams
