Answer:
ALL ISOTOPES OF AN ELEMENT HAVE THE SAME NUMBER OF;
1. PROTON
2. ATOMIC NUMBER
Explanation:
Isotopes are atoms with the same atomic number but different mass numbers. Isotopes of an element has the same number of proton which dictates the atomic number of the atoms. The difference in mass number is as a result of the difference in the number of neutrons. Isotopes of an atom have different physical properties but they exhibits the same chemical properties because neutrons have no influence on the chemical properties and the change or difference in neutrons will produce no effect on the chemical properties of the atoms. Neutrons only contributes to the mass of the atoms giving the isotopes of an atom different mass numbers. An example is chlorine with two isotopes, Cl -35 and Cl -37.
Properties Cl-35 Cl-37
mass number 35 37
atomic number 17 17
number of protons 17 17
number of electrons 17 17
number of neutrons 35-17 = 18 37-17 = 20
abundance in nature 75% 25%
Sugar is the solute since it is the thing that is being dissolved.
And the water is the solvent since it is the thing that contains the solute.
Answer:
The balanced chemical equation for the reaction between sodium and water is:2 Na ( s ) + 2 H2O ( l ) 2 NaOH ( aq ) + H2 ( g ) We can interpret this to mean: 2 moles of water and ? ... mole(s) of hydrogen.
Without the statements, I can't specifically answer your question. But, I can present the largest piece of evidence we have for the Big Bang Theory.
Over the course of <em>many many </em>years, we have noticed something. Everything is expanding outwards.
We can observe this, and realise that since things are expanding outwards, or, away from something, everything once came from a fixed point.
Life and the universe started from one point, and every single thing in our cosmos is still expanding away from it. =)
Answer:
It means to be included in something, such as a group or activity.
Explanation:
