When moving across a row in the Periodic Table, what increases?

Answer 1

#Z#, atomic number, increases sequentially, and thus does nuclear charge.

Because #Z#, the number of positively charged, massive nuclear particles, increases across the row from left to right as we face the Table, nuclear charge increases. Because nuclear charge increases, the atomic radii, defined by the orbit of the valence electrons, DECREASE, as the increased nuclear charge exerts a pull on the valence electrons.

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Answer 2

Caleb Adams

Nuclear charge and atomic number rise.

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.