The answer is 18 since the atomic number of Potassium is 19.
Mathematically,
= 19 - 1
= 18
Potassium is a Group (I) metal. All Group(I) metals ionise to M^+ So potassium becomes K^+. Its ionic charge is '+1'.
82
Potassium is not a change; potassium (K) is a chemical element.
91
KOH or potassium hydroxide or potash lye.
2-(-1)= 2+1= 3 When a parenthesis is preceded by a minus sign, remove the parentheses and the minus sign before the parentheses and change the sign of each term within the parentheses. When a parenthesis (-1) is preceded by a minus sign, -(-1) remove the parentheses ( ) and the - sign before the parentheses and change the sign of each term -1 within the parentheses +1
It is a chemical change. 2KClO3 ----> 2KCl + 3O2
the answer of negative 4 minus positive 21 is positive 25 because you leave the negative 4 as is, change the minus to a plus, and change positive 21 to negative 21. (Leave Change Change)
Potassium iodide is two atoms, one of potassium and one of iodine.
Potassium deficiency is one of the main nutritional disorders in plants. You need to change your soil as soon as possible to prevent your plant from dying.
Only some antibiotics can increase potassium in your body. Sulfamethoxazole/Trimethoprim (Septra or Bactrim) and pentamidine have been known to increase potassium levels. If you are not taking either of those, your antibiotics should no effect on your potassium. If you are taking one of these drugs and your potassium levels are already high, you should contact your doctor and see if he or she wants to change your antibiotic to a different one.
1 minus 1/2 minus 1/3 is equal to 0.166667