Acids: taste sour, has a pH less than 7
bases: tastes bitter, has a pH greater than 7
Answer:
Protons= Positive charge
neutrons= neutral charge
electrons= negative charge
Protons and neutrons make up nucleus
Electron travels around the nucleus
Explanation:
The correct option is D.
Significant figure refers to the number of digits that are used to report a measured quantity. The amount of a significant number in a measurement always equal to the number of digits that are known with some degree of confidence and the last number, which is usually an estimate. When carrying out calculations with significant figures measurements, one must be careful to report the number of significant figure to reflect the least precise measurement.
