3. Meera had some guests visiting on Sunday afternoon. While serving them tea from the fingers and she teels intense pain. Her mother asks her to keep her fingers under
running tap water. After some time the pain subsides,
Answer the following questions based on the above information
a) What could be the possible reason for the intense pain felt by Meera?
b) Why does her mother ask her to keep fingers under tap water?

plasma - state of matter made up of electrically charged particles

the objects have the same charge.

answer: atomic mass was originally used to arrange elements on the periodic table, but is no longer used to organize the modern version.

explanation:

originally atomic mass was used to arrange elements on the periodic table from left to right in a row. each column then shows similar properties of elements of a group.

in modern periodic table, the atoms are arranged in increasing atomic number. as atomic number represents the number of protons in an atom which is unique for every atom.