14. the trend in atomic size can be explained by\nincreasing nuclear force\nincreasing number of…
14. the trend in atomic size can be explained by\nincreasing nuclear force\nincreasing number of protons\ndecreasing atomic mass\nincreasing electron shielding
Answer
Answer:
Increasing number of protons
Brief Explanation:
As the number of protons in the nucleus increases across a period, the nuclear charge increases. This stronger positive - charge pulls the electrons closer to the nucleus, decreasing the atomic size. So, the trend in atomic size can be explained by the increasing number of protons.