Question

no of be atoms in 36u of be9 is​

Answer 1

Answer

2.4088× 1024 atoms

Explanation:

we need to find the number of moles of Be-9 using the relationship:

(Mass of Be-9)/(RFM of Be)

34/9

= 4 moles of Be-9

Having calculated the number of moles of Be-9, it is clear that 1 Mole ≡ 6.022× 1023 atoms.

Therefore, 4 moles=?

4 moles ×6.022× 1023 atoms

= 2.4088× 1024 atoms

Answer 2

Answer:

Explanation:

Number of Be atoms in 36u of Be 9 is- 2.4088x 1023 atoms.

• Be is the element which was discovered in 1797, it was discovered by Nicholas Louis Vauquelin.
• The name of this element was derived from the Greek name beryllo.
• It belong to group 2, period 2 Block s, The atomic number of this element is 4.
• Electron configuration is- [He]2s2, melting point is- 1287 degree Celsius, boiling point is 2468 degree Celsius.
• Density of this element is 1.85
• Beryllium is used in the gears and cogs.
• Beryllium is the silver white type metal. It is used in alloys with Cu and Ni- for making springs, electrical contacts and many more.
• we need to find the number of moles of Be-9 using the relationship:
• (Mass of Be-9)/(RFM of Be)
• 34/9
• = 4 moles of Be-9
• Having calculated the number of moles of Be-9, it is clear that 1 Mole ≡ 6.022× 1023 atoms.
• Therefore, 4 moles=?
• 4 moles ×6.022× 1023 atoms
• = 2.4088× 1024 atoms
• Hence, the number of atoms in 36 u of  be 9 is 2.4088x 1024 atoms.
• #SPJ2