Priestley / Lavoisier. (ii) The atomic theory is given by Avogadro
Newton / Dalton/ Lavoisier. (iv) In MgO the valency of Mg is 1/2/3/4.
The formula of calcium phosphate is CaPO/Ca,(PO)/Ca (PO.).
(vi) The symbol of sodium is S/Na/Pb. (vii) The neutral particle is
electron / proton / neutron. (viii) Chlorate radical is denoted by
C1/C10/C10, (ix) The symbol of Calcium is C/ Cal Cu / CO.
30. Fill in the blanks : (i) The valency of phosphorus in P.O.
is - By the symbols K and P we mean - and — respectively
m The valency of nitrogen is -- (iv) - take part in chemical reaction
() - electricity is associated with the proton. (vi) The masses
neutron and are almost equal. (vii) The valencies of iron are — a
- (vii) Oxygen molecule contains - atoms. (viii) OH is the form
of - radical.
D. Essay Type Questions :
[4 marks e
31. State about Dalton's atomic theory. 32. What informatio
obtained from the equation 2H, +0. = 2H.0.33. Write the simili
imilarities between atomic structure and the solar sy
Answers
Explanation:
Priestley / Lavoisier. (ii) The atomic theory is given by Avogadro
Newton / Dalton/ Lavoisier. (iv) In MgO the valency of Mg is 1/2/3/4.
The formula of calcium phosphate is CaPO/Ca,(PO)/Ca (PO.).
(vi) The symbol of sodium is S/Na/Pb. (vii) The neutral particle is
electron / proton / neutron. (viii) Chlorate radical is denoted by
C1/C10/C10, (ix) The symbol of Calcium is C/ Cal Cu / CO.
30. Fill in the blanks : (i) The valency of phosphorus in P.O.
is - By the symbols K and P we mean - and — respectively
m The valency of nitrogen is -- (iv) - take part in chemical reaction
() - electricity is associated with the proton. (vi) The masses
neutron and are almost equal. (vii) The valencies of iron are — a
- (vii) Oxygen molecule contains - atoms. (viii) OH is the form
of - radical.
D. Essay Type Questions :
[4 marks e
31. State about Dalton's atomic theory. 32. What informatio
obtained from the equation 2H, +0. = 2H.0.33. Write the simili
imilarities between atomic structure and the solar sy
Answer:
Priestley / Lavoisier. (ii) The atomic theory is given by Avogadro
Newton / Dalton/ Lavoisier. (iv) In MgO the valency of Mg is 1/2/3/4.
The formula of calcium phosphate is CaPO/Ca,(PO)/Ca (PO.).
(vi) The symbol of sodium is S/Na/Pb. (vii) The neutral particle is
electron / proton / neutron. (viii) Chlorate radical is denoted by
C1/C10/C10, (ix) The symbol of Calcium is C/ Cal Cu / CO.
30. Fill in the blanks : (i) The valency of phosphorus in P.O.
is - By the symbols K and P we mean - and — respectively
m The valency of nitrogen is -- (iv) - take part in chemical reaction
() - electricity is associated with the proton. (vi) The masses
neutron and are almost equal. (vii) The valencies of iron are — a
- (vii) Oxygen molecule contains - atoms. (viii) OH is the form
of - radical.
D. Essay Type Questions :
[4 marks e
31. State about Dalton's atomic theory. 32. What informatio
obtained from the equation 2H, +0. = 2H.0.33. Write the simili
similarities between atomic structure and the solar sy
Explanation: