Question
Standard temperature & pressure are ____ atm.
Answer
Standard temperature & pressure are 273 K, 1 atm.
Note that standard condition is different from standard temperature & pressure (STP): standard conditions are 25 degrees C or 298 K, 1 atm, and 1 M concentration.
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In element notation, A is the ____
In element notation, Z is the ____
____ is the weighted average of the masses of an element's isotopes .
Atomic weight is ____.
The ____ states that an atom is mostly empty space, with electrons orbiting a fixed, positively charged nucleus.
The Rutherford Model states that ____.