1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
igomit [66]
3 years ago
6

the radius of a gold atom is 1.35 angstroms. how many gold atoms would it take to line up a span of 8.5 mm?

Mathematics
2 answers:
serg [7]3 years ago
6 0
The angstrom<span>, also known as the </span>angstrom<span> unit, is a measure of displacement equal to 0.0000000001 meter (10 -10 m). It would be helpful to convert the units of angstrom to mm. We do as follows:

diameter = 2 x 1.35 x10^ -10 m ( 1000 mm / 1 m ) = 2.7 x 10^-10 mm / atom

Number of gold atoms = 8.5 mm / </span>2.7 x 10^-10 mm / atom = 31481481481.481 atoms
masha68 [24]3 years ago
6 0

Answer: Hello there!

We know that one millimeter is equivalent to 10^7 angstroms

then 8.5 mm is equal to 8.5x10^7 angstroms

Now we know that the radius of a gold atom is 1.35 angstroms, and we want to know how many gold atoms would take to line up a span of 8.5mm (or 8.5x10^7 angstroms)

First, the interval of distance that each atom would need in the line, is equal tho the diameter of the atom (assuming that there is no space between the atoms)

And the diameter is equal to two times the radius, so D = 2*1.35 angstroms = 2.7 angstroms.

So the amount of gold atoms needed to line up a span of 8.5 mm, is the number of times that 2.7 "enters" in 8.5x10^7

this is (8.5x10^7)/2.7 = (8.5/2.7)x10^7 = 3.15x10^7

Then there are 3.15x10^7 gold atoms in a line of 8.5 mm.

You might be interested in
What is the degree of the polynomial and what the y-intercept
Arada [10]

Answer:

Polynom degree: 5

Y intercept point: (0, 80)

Step-by-step explanation:

P(x)=(x+5)(x+4)²(x+1)²

When you expand, the highest power of x is 1 for first term (x+5), 2 for second term (x+4)² and again 2 for (x+1)². Overall, x⁵ will be the x term with highest power. So the degree of the polynom is 5.

The y intercept, i.e. intersection with OY axis, happens for x=0. Thus, P(0)=5×4²×1²=5×16=80. The y intercept point is (0, 80)

5 0
2 years ago
Work out the area of a rectangle with base, b = 20mm and perimeter, P = 60mm.
skelet666 [1.2K]

base+perimeter

20mm+60mm

=80mm

8 0
3 years ago
What is 5/12 divided by 4/3
lions [1.4K]

Answer:

5/6

Step-by-step explanation:

0.41/1.33=0.3125=5/6

5 0
3 years ago
Un terreno rectangular cuyo ancho mide 20 mts menos que su largo. Su área del terreno es de 150 metros cuadrados. ¿Determina las
IrinaVladis [17]

Answer:

you are a good friend Sayed im not sure if I can get it done before I get my license back and the whole time we go back and be out in a bit I guess that was the best thing I ever heard of the beast's I have

7 0
2 years ago
Add. What is the sum (2 * 10 exponent 16) + ( 7 * 10 exponent 16) in scientific notation
Roman55 [17]

Answer:

9 * 10^16

Step-by-step explanation:

 2 * 10^16

+7 * 10^16

 9 * 10^16

5 0
3 years ago
Other questions:
  • What is the estimated difference of 2.97 and 1-
    7·1 answer
  • denny mowed his neighbors lawn for a handful of dimes and. nickel’s. when he counted them - because denny has no life, it came t
    5·1 answer
  • If the area of a rhombus is 100 square inches and one of the diagonals is 25 inches long, what is the length of the other diagon
    5·1 answer
  • Molly completed the multiplication below and said she needed eight cups of bananas for 4 batches of muffims.What is molly's erro
    9·1 answer
  • Which number is the greatest?
    10·1 answer
  • Find the distance between the two points in simplest radical form.<br> (8, -3) (6, -8)
    10·1 answer
  • Adwoa received a commission of 20% on a bread she sold. in one week, Adwoa's commission was Gh¢540.00.
    7·1 answer
  • Jane and Chris sell candles to earn money. Jane spent $20 to create her candles and sells candles for $3 each. Chris spent $40 t
    9·1 answer
  • Classify the following triangle as acute, obtuse, or right.
    13·2 answers
  • 1
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!