Hi
In the modern periodic table, the elements are arranged in the order of their increasing atomic number. In the modern periodic table, there are seven horizontal rows called periods and eighteen vertical columns (1 to 18) called groups. The arrangement of the periods and groups results in formation of boxes.
Explanation:
If it's help pls give me Brainliest!!
The correct answer would be option D. 10 protons, 12 neutrons because the closer the neutrons to the number of protons, the more stable.
Answer:Explained
Explanation:
Given
mass of aluminium kettle(
)=1.05 kg
(a)Heat capacity of the kettle=Heat capacity of Aluminium
(b)Heat is required to increase the temperature of this kettle from 
Q=71.82 kJ
(c)If kettle contains water 1.25 L of water i.e. 1.246 kg of water then heat required to raise the temperature from 23 to 99
Q=71.82+396.20=468.028 kJ
A) Hg, or Mercury, is a liquid at room temperature. Hope this helps!!
Sulfur is the element used to cross-link the hydrocarbon chains when natural rubber undergoes vulcanization.
The invention relates to cross-linking hydrocarbon polymers with aromatic polyazides in the presence of sulfur. It has been discovered that hydrocarbon polymers can be cross-linked when heated with aromatic polyazides.
