Atom size increases down a group because there is an increase in the number of shells so the attraction between electrons and protons decreases. Atom size decreases across a period because the number of protons increases meaning that there is more attraction between the protons and electrons therefore drawing the outer shells closer to the nucleus.

8 0

3 years ago

What is the difference between the Warn-on-Forecast method and the current method of weather prediction?

Tanya [424]

I would think the answer would be C. Based off of what I've learned and heard. Sorry if it's not the correct answer though.

5 0

3 years ago

Read 2 more answers

A 0.25 M solution of NaCl must be diluted into a 250 mL solution (0.08 M). What volume should be taken from the original solutio

mihalych1998 [28]

Answer:

80ml

Explanation:

you have your initial concentration to be 0.25 mole on your final volume to be 250 ml and your final concentration to be 0.8 0.08 molar you don't have your initial volume sotify your initial volume you use the expression see 1 * 21 equals see two times between you make when when the subject then 1 equals to 2 x 2/3 one you know substitute your values into it to get being one that's your original volume to be at the latest or 80 ml

7 0

4 years ago