Wednesday, July 21, 2010

Chemistry HELP PLEASE!! :)<33?

I just don't get these questions!!!!!!


its not even in my book!!!!!!!!!


PLEASE HELP!!!!!!





1. X-rays are ____ frequency waves that can pass easily through like skin and muscle.


2. What equation can be used to show that X-rays can be dangerous?


3. Light energy had already been described as traveling in waves. The photoelectric effect showed that light also behaves like an(n) _____.


4. How many electrons are in the second energy level of an atom of each element?


- chlorine


- phosphorous


- potassium








Please help meeeeeeeeeeee


**please don't say "READ YOUR BOOK" or any other sayings that would not help me to understand these questions.


THANK YOU :]%26lt;33

Chemistry HELP PLEASE!! :)%26lt;33?
1. high


2. E = hν (energy = planck's constant x frequency)


3. particle


4. a. chlorine: a full 8


b. phosphorus: a full 8


c. potassium: a full 8
Reply:1- High


2-Something like E=mxCxCx (T1-T2)


3- electron


4- Cl=8, P=8,K=8


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