Question

Q38.True/False
(1) Atom was derived from
derived from the Greek word 'atomos' meaning
the Greek word
invisible.
to
Tove
(ii) Atom is the smallest particle of an elem
smallest particle of an element that can take part in a
chemical reaction.
(iii) lu= the mass of an atom of C-12.
(iv) The atomicity of ozone is 4.
(v) The symbol for the element copper is CU.
(vi)'Ferrum' is the Latin name for iron.
(vii) The molecular formula for sodium hydrogen carbonate is Na HCO,
(viii) 32 g of oxygen contain Avogadro number of oxygen molecules.
(ix) Atomic mass of an element is the relative atomic mass.
(x) In a chemical substance the elements are always present in definite
proportions by mass.
(xi) 4 Moles of oxygen atoms are present in one mole of Al, (SO), .
(xii) The chemical formula of a molecular compound is determined by
the valency of each element.
(xiii) The name copper was taken from Cyprus. False​

Answer 1

Answer:

1.false

2.true

5.not CU but cu

6. ferrous

7.NaHCO3

8.false

12.true

13.i think cuprous

Explanation:

1.explanation-it it was derived from the name atomic which means uncuttable

a-un. tomio-cutable