Decreases
Increases
Remains unchanged
Does not follow a definite pattern
Answer is Right!
Answer is Wrong!
The correct answer is A. Decreases.
As you move from left to right across a period in the periodic table, the atomic number increases. This means that the number of protons in the nucleus increases, and the number of electrons in the atom also increases. The increased number
of protons in the nucleus creates a stronger pull on the electrons, which causes the atomic radius to decrease.Option B is incorrect because the atomic radius decreases as you move from left to right across a period. Option C is incorrect because the atomic radius does decrease as you move from left to right across a period. Option D is incorrect because the atomic radius does follow a definite pattern as you move from left to right across a period.