The element californium (cf) sells for $1000 per µg. assuming 6.02 x 1023 atoms of cf have a mass of 251 grams, how many atoms of cf could you buy for 1 u.s. penny?
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Ответ:
-![2.40*10^1^0atoms](/tpl/images/0079/8984/84e36.png)
Solution:- It is a simple unit conversion problem. We could solve this using dimensional analysis.
We know that, 1 US dollar = 100 cents
1 cent = 1 US penny
So, 1 US dollar = 100 US pennies
Let's make the set up starting with 1 penny as:
=![2.40*10^1^0atoms](/tpl/images/0079/8984/84e36.png)
Therefore, we can bye
of Cf in one US penny.
Ответ:
Electronegativity is a measure of an atom's ability to attract shared electrons to itself. On the periodic table, electronegativity generally increases as you move from left to right across a period and decreases as you move down a group.
Explanation:
Hope it is helpful