10. Which postulate of Dalton's atomic theory can explain the law of definite proportions?
11. Write the name of the followings: Al, Ar, Ba, B, Br, Ca, Car, Cl, Co, Cu, Fe, F, Au, Ag, H, 1, Pb, Mg. Nen
Na, S, U, Zn.
12. What are the atomic mass and atomic no. of the followings: H, C, N, P, O, Na, Mg, S, CI, Ca, Li, Ba. Zn. A
15. Write down the formula of the followings: i) Sodium oxide ii) Aluminium Chloride ii) Sodium Su
Magnesium Hydroxide.
14. Calculate the no of moles for the followings: i) 52 g He il 12.044*10*no of He atoms.
15 if one mole of items weight 12g, what is the mass (in grams) of litems of carbon?
16. Which has more no of items, 100 grans of Naor 100gms of Fe'?
17. The Avogadro constant 6.022*10" is defined as the number of atom in 12 gram of carbon. How many nu
atoms in 0.5 gram of carbon?
18 if an atom contains one electron and one proton will it carry any charge or ut explain your answer.
19. Helium atom has an atomic mass of 44 and 2 proton in its nucleus how many neutrons does it have.
Answers
Answered by
1
Explanation:
11
aluminium
argon
barium
boron
bromine
calcium
carbon
chlorine
cobalt
copper
iron
Florine
gold
silver
hydrogen
lead
magnesium
neon
sodium
sulphur
uranium
zinc
Similar questions