homework help: I need help with science homework for Ms.DeClair’s class - Help.com

I need help with science homework for Ms.DeClair’s class

so please help me.

This open post was written 3 years, 1 month ago | V/U/S: 250, 1, 2 | Edit Post | Leave a reply | Report Post


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Cysticfibrosis13 offline Verified User (2 years, 11 months) Long Term User Shouts: 0 #
An Unknown Location | 2 years, 11 months ago (2 months, 3 weeks after post)

1.Rubidium forms the positive ion Rb+. Is this ion larger
or smaller than the neutral atom?Explain.

2.How can you find the number of neutrons in the
isotope nitrogen-16.

3.Explain how density varies across and up and down
the periodic table .

4.Place these elements in order from least
reactive to most reactive: Nickel (Ni),Xenon(Xe)
lithium(Li).How did you determine the order?

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