Graduation of the properties of elements in the periodic table Flashcards
1
Q
How is the atomic size determined?
A
It is determined by knowing the atomic radius of the atom.
2
Q
What is the measuring unit of the atom?
A
Picometer.
3
Q
What is the picometer?
A
It is part of million of the million part of a meter.
4
Q
Does the atomic size increase or decrease going from right to left in the periodic table and why ?
A
It increases, because the decrease in the attraction force between the nucleus and the outermost energy level.
5
Q
Does the atomic size increase or decrease from up to down in the periodic table and why?
A
It increases due to the increase in the number of energy levels occupied by electrons.
