Answer:
Uh...
Explanation:
Krypton is a fictional planet, get back to earth superman.
Answer:
They are all the same = 8
Explanation:
Since the symbol of that atom is not give, we can infer from the given number the nature and kind of element we are dealing with.
The number 15.999 rounded up to 16 is the atomic weight of the atom also called the mass number.
Although not peculiar enough, we are certain that this atom is Oxygen.
On the periodic table, elements are arranged based on their atomic numbers.
Atomic number of oxygen = 8 = number of protons
For every neutral atom on the periodic table, the number of protons and electrons are the same
Atomic number of oxygen = number of protons = number of electrons = 8
Number of neutrons = Mass number - atomic number = 16 - 8 = 8
Answer:
It is necessary to use models to study sub- microscopic objects such as atoms and molecules because they are too small to be seen.
Answer is: Not all mixtures have solutes and solvents.
Solution is homogeneous mixture composed of two or more substances.
In aqueous solution, solvent is water and solute (for example salt) is a substance dissolved in water.
Homogeneous solution of salt and water can be separated with heating (evaporating the water).
Hydrogen
...
Acids always dissociate in water, which causes the production of hydrogen ions. Not all necessarily <em>start</em> with hydrogen, but most do and all contain.
