Answer:
save it for future references
Explanation:
The explanation is shown in the image attached with
Answer:
False
Explanation:
The given statement is false.
Mendeleev devised periodic table by arranging elements in increasing order of their atomic masses.
According Mendeleev, physical and chemical properties of the elements are function of their atomic masses.
Henry Moseley arranged elements in increasing order of atomic number. Periodic table based on increasing order of atomic number is called modern periodic table.
Answer:
Option B
Explanation:
Whenever there is a lightning strike, the enormous amount of electrical energy generated is allowed to flow through a low resistant pathway i.e through the lightning rods to the ground so that the building and its resident remains intact and safe from the adverse impacts of lightning strike. These lightning rods are placed at a certain height above the top roof of the building Hence, option B is correct
