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raketka [301]
3 years ago
14

Neon is a gas made up of only one type of atom. Which term best describes neon

Chemistry
2 answers:
MAXImum [283]3 years ago
8 0
Neon is an element because it is a pure atom
vfiekz [6]3 years ago
8 0
B) élément
Neon is located on the periodic table [of elements] and is only made up of 1 atom
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5 0
3 years ago
1.505 times 10^23 Na atoms
dybincka [34]

5.75g

Explanation:

Given parameters:

Number of atoms = 1.505 x 10²³atoms

let us find the number of moles and mass of this atom.

Solution:

The mole is convenient unit for reporting measurements in chemistry. It allows us to make mathematical calculations:

     one mole of substance contains 6.02 x 10²³atoms

Number of moles of Na given = \frac{1.505 x 10^{23} }{6.02 x 10^{23} }  = 0.25moles

Mass of Na atom given = number of moles x molar mass

   Molar mass of Na= 23g/mole

Mass of Na = 0.25 x 23 = 5.75g

learn more:

Number of moles brainly.com/question/1841136

#learnwithBrainly

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