Answer:
all atoms of a given element have the same number of protons but may have different masses
Explanation:
After the discovery of isotopes, scientists were able to conclude that all atoms of a given element have the same number of protons but may have different masses.
Isotopes are atoms of an element that have the same atomic number but different mass number.
The atomic number is the number of protons within an atom.
Mass number is the number of protons and number of neutrons.
Therefore, all atoms of a given element have the same number of protons but different mass.
Answer:
2) All four statements are part of Dalton's original atomic theory.
Explanation:
The postulates of the Dalton’s atomic theory are:
- The matter is comprised of small units which are known as atoms.
- The atoms are indivisible which means that they can not be further divided.
- Atoms of the matter can neither be created nor be destroyed in the chemical reaction.
- All atoms of the particular element are identical.
- The atoms of the different elements vary in the size and the mass. and posses different properties.
- The compounds are formed by the different whole number combinations of the atoms.
<u>Hence, all 4 are correct.</u>
Answer:
Atom economy is the conversion efficiency of a chemical process in terms of all atoms involved and the desired products produced
Answer:
oatmeal with raisins is a heterogeneous mixture. The raisins may be solid, but turn the bowl over and you will see the mixture as a whole most definitely acts like a liquid. Mud puddles are a heterogeneous mixture.
Explanation:
bromine is used to distinguish between saturated and unsaturated compounds. when bromine water is added to the unsaturated compound, bromine that added to the unsaturated compound and the red brown colour of bromine water is discharged.