Answer:
Atomic size
Explanation:
In the periodic table , atomic size is indirectly proportional to the effective nuclear charge .the atomic size reduces from left to right across the table. This is because electrons are added to the same shell.
How did you take a picture?
John Deere created steel plow
Answer:
light is an example of a wave that is not mechanical .
it is different as it does not need material medium for its propagation
