Gen chem

A brilliant french chemist formulated this law by describing one of his experiments involving mercurix oxide

• Antoine lavoisier

• Charles darwin

• Sigmund Freud

He placed a small amount of mercurix oxide, red solid inside a retort and sealed the vessel tightly

• Charles darwin

• Antoine lavoisier

• Sigmund Freud

In chemical reaction no change in mass takes place

• Law of conservation of mass

• Law of multiple proportion

• Law of definite proportion

He believed that the atom was to be a smallest particle comprising substances

• John dalton

• Charles darwin

• Sigmund Freud

He published his book a new system of chemical Philosophy where he proposed an atomic theory of matter that can explain chemical pbservations as predicted by the three fundamental laws

• John dalton

• Charles darwin

This is an element represents the number of protons in its necleus

• The atomic number

• The mass number

Is the sum of the number of protons and neutrons in its necleus

• The mass number

• The atomic number

Are elements having the same atomic number but different mass numbers

• Isotopes

• Reactant

• Atoms

Is a combination of at least two atoms in a definite proportion bound together by covalent bonds

• Molecule

• Atom

• Ion

Of all the elements only six exist as single atoms namely??