Answer:
It's the second one down.
Explanation:
Gold
Mass 197
Number of Protons: 79
Number of Neutrons: 197 - 79 = 118
Number of electrons: = number of protons = 97
Answer:
Figure E is a compound
Explanation:
Compounds are constructed of 2 different elements
Answer:
B
Explanation:
Noble gases are in group 18 (neon, argon, etc)
<u>Answer:</u> The correct answer is Option A.
<u>Explanation:</u>
To calculate the number of moles of a substance, we use the equation:

We are given:
Given mass of fluorine = 6 grams
Now, to know the moles, we divide the given mass of fluorine by the atomic mass/molar mass of fluorine.
Thus, the correct answer is Option A.
Answer:
Explanation:
193.02 times 9.55 it's going to be 1843.341
9.55= 191.20 milli