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kiruha [24]
4 years ago
12

How many atoms does an element make up

Chemistry
2 answers:
Darina [25.2K]4 years ago
8 0
It makes up over 100
Verdich [7]4 years ago
8 0

Answer:

just over 100

Explanation:

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Fill in the [?]:<br> 1,516,000,000 nm = [?]m<br> Give your answer in standard form.
lora16 [44]

Answer:

1nm = 1000000 mm 1cm=10mm 1m=100cm

Explanation:

so

1,516,000,000 nm = divided by 1000000 is 1516 mm divided by 10 = 151.6 cm divided by 100 = 0.1516 m

0.1516 = 1.516 x 10 -1

because it is 10 less than 1.516

5 0
3 years ago
Based on this, __electrons__________________ have almost no mass compared to the other particles.
Setler79 [48]

Based on this, Individual electrons in graphene have almost no mass compared to the other particles.

The material graphene consists of a single layer of carbon atoms arranged in a hexagonal lattice.

Electrons flowing through graphene can be scattered from impurities (such as foreign atoms in the lattice), from other electrons and from lattice vibrations known as phonons.

What happens to the electrons in graphene?

According to the researchers, such high values are a result of the photo thermoelectric effect. “It turns out that when you shine a light on graphene, the electrons in the material heat up, and remain hot, while the underlying carbon lattice remains cool,”

Why are electrons massless in graphene?

Yes, low energy electrons and holes in graphene can be thought of as massless because of the linear dispersion of the band structure near the K points.

This is an analogy to the relativistic energy dispersion E2=P2C2+M2C4, which becomes linear in momentum for m=0.

To learn more about electrons here

brainly.com/question/12001116

#SPJ4

7 0
2 years ago
I didn't really understand the explanation, can it be broken down
pentagon [3]

Answer:

40.06

Explanation:

<u>(23 * 39) + (48 * 40) + (29 * 41)</u>

                   100

= 40.06

formula:

<u>(% of isotope A * mass of A) + (% of isotope B * mass of B) ......</u>

                                        100

                                                                                                               

4 0
3 years ago
Read 2 more answers
Select ALL that apply for how to name a BINARY acid. *
Ne4ueva [31]
I would say “ends with -ic” , “starts with hydro”,
7 0
3 years ago
Are the activities exothermic or endothermic?​
Alexandra [31]

Answer:

The first 5 are exothermic reaction because heat is in product means heat is evolved or given out.

And last no reaction shows that heat is required so last reaction is endothermic reaction.

Explanation:

And heat is evolved in exothermic reaction and heat is absorbed in endo thermic reaction

6 0
3 years ago
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