Atomic Structure Test - 5

According to the question the correct option will be option ‘B’ because John Dalton considered that "all matter is composed of small particle called the atom."
  According to Dalton,
-Atom is the smallest indivisible part of matter which takes part in the chemical reaction.
-Atom is neither created nor be destroyed.

According to the question the correct option will be option ‘A’ because M correctly represents a symbol for chlorine in Berzelius system. The symbol M was derived from the word Muriatic Radicals which signifies element chlorine. At present, the symbol M is replaced with symbol Cl.

According to the question the correct option will be option ‘A’ because Atoms cannot be subdivided, created or destroyed into smaller particles when they are combined, separated or rearranged in chemical reactions. The whole matter remains conserved in the form of reactants changing to products.

According to the question the correct option will be option ‘C’ because all matters are made up of tiny, indestructible, indivisible unit particles of an element. Every atom of an element consists of the fixed number of protons, neutrons, and electrons, the subatomic particle. The number of protons varies from atom to atom. The mass of the atom changes as the number of subatomic particle changes. A chemical reaction involves combination or rearrangement of atoms and during the chemical reaction; atoms are neither created nor destroyed.

According to the question the correct option will be option ‘B’ because A covalent bond is a chemical bond that involves the sharing of electron pairs between atoms.
So, combining atoms of a compound have nearly similar electro negativities the bond between them is covalent.

According to the question the correct option will be option ‘B’ because Atoms of different atoms combine to form molecules so as to attain chemical stability.

According to the question the correct option will be option ‘C’ because John Dalton 1808, believed that matter is made up of extremely minute indivisible particles, called atoms which takes part in chemical reactions. These particles can neither be created nor be destroyed.

According to the question the correct option will be option ‘B’ because A covalent bond is a chemical bond that involves the sharing of electron pairs between atoms.
So, combining atoms of a compound have nearly similar electro negativities the bond between them is covalent.

 According to the question the correct option will be option ‘C’ because Dalton's atomic theory states that atoms are the smallest unit of matter that can participate in a chemical reaction. Chemical reactions involve the combination, separation, or rearrangement of atoms, but atoms are neither created, destroyed, divided into parts, or converted into atoms of any other kind.

According to the question the correct option will be option ‘B’ because Molecule is the basic unit of matter which is not capable of independent existence.

According to the question the correct option will be option ‘B’ because Valence electrons are electrons in the outermost shell and they are responsible for determining the number of bond formation and an atoms charge. this give the atom its chemical properties.

According to the question the correct option will be option ‘C’ because Dalton's atomic theory fails to explain the existence of allotropes; it does not account for differences in properties of charcoal, graphite, diamond. 

According to the question the correct option will be option ‘C’ because the valences of an element is the number of electrons donated or accepted by its atom during chemical combination.

According to the question the correct option will be option ‘A’ because Atom is the basic unit of matter which is not capable of independent existence.

According to the question the correct option will be option ‘C’ because According to Dalton, atoms are the smallest particles of matter.

-When atoms combine together molecules are formed.

-When an atom looses or gains electron ions are formed.