Mass number = number of protons + number of neutrons
number of protons = atomic number =7
number of neutrons= mass number - number of protons=16-7=9
Answer is B.9.
Answer:
The given statement is false.
Explanation:
Acid as are defined as those substance which gives hydrogen ions in their aqueous solutions.
Base as are defined as those substance which gives hydroxide ions in their aqueous solutions.
The given statement is false.The correct statement is :
Bases increase the concentration of hydroxide ions by donating hydroxide ions to water molecules.
Answer:
K= 44.018%; S= 19.957%; O= 36.025%
Explanation:
your welcome
Answer:- atoms of boron.
Solution:- It's unit conversion problem that could easily be solved step by step.
Step 1:- grams to moles conversion-
2.00 g B (1 mol B/10.81 g B) = 0.185 mol B
Step 2:- mol to atom conversion-
0.185 mol B(6.022 x 10^23 atom B/1mol B) = atoms of B