Electrons and protons are particles in an atom with equal but opposite charges. Electrons have a negative charge and protons have a positive charge. What is the charge amount of an atom with 2 more electrons than protons?

Answers

Answer 1

Answer:

Answer:

$-3.2\cdot 10^(-19)C$

Step-by-step explanation:

- Protons are positively charged particles contained in the nucleus of the atom. They have a charge of $q_p=+1.6\cdot 10^(-19)C$

- Electrons are negatively charged particles orbiting around the nucleus of the atom. They have a charge of $q_e = -1.6\cdot 10^(-19)C$

For a neutral atom, the number of protons is equal to the number of electrons, so the total charge of a neutral atom is:

$Q=Nq_p + Nq_e = N(q_p+q_e)=N(+1.6\cdot 10^(-19)-1.6\cdot 10^(-19))=0$

In this problem, we have an atom having an excess of 2 electrons, i.e. it has 2 more electrons than protons.

Therefore, the charge of this atom will be:

$Q=0+2q_e$

and substittuing, we find

$Q=2(-1.6\cdot 10^(-19))=-3.2\cdot 10^(-19)C$

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Is 34 pounds greater than less than or equal to 544 ounces

Answers

There are 16 oz in 1 pound.
34 lbs = 544 oz

Therefore, 34 lbs = 544 oz

2(2x-10)-8=-2(14-3x)

Answers

⇒ Solution

1) Simplify
4x−20−8=−28+6x

2) Simplify 4x−20−8 to 4x−28
4x−28=−28+6x

3) Group all terms
4x−28=6x−28

4) Cancel −28 from eachside
4x=6x

5) Move all of the terms to one side
4x−6x=0

6) Simplify equation 4x−6x to −2x
−2x=0

7) Divide each side by −2
x=0

Write a subtraction problem with mixed numbers in which the difference is 2 over 7. Calculate difference to check your answer

Answers

$3 (5)/(7) -3 (3)/(7) = (2)/(7)$

Check:

$3 (5)/(7) = (26)/(7)$

$3 (3)/(7) = (24)/(7)$

$(26)/(7) - (24)/(7) = (2)/(7)$

Sophie has 5 pieces of string that are 4 yards each. She uses 3 pieces that are each 3 feet long. How much string does Sophie have left?2 feet

2 yards

31 feet

51 feet

Answers

Alright, lets get started.

Sophie has 5 pieces of string that are 4 yards each.

1 yards = 3 feet,

So, 4 yards = $4 * 3 =12$ feet

Total number of string she has = 5 piece

So, total length she has = $5*12 = 60$ feet

It means she had 60 feet string in starting.

Now, She uses 3 pieces that are each 3 feet long, means

She uses = $3*3 = 9$ feet

So, remaining string length will be = $60 - 9 = 51$ feet

Means 51 feet string does Sophie have. : Answer

Hope it will help :)

Sophie has 2 yards left.

This is percent of change: 15 yards to 18 yards

Answers

To calculate the percent change, divide the second number by the first and multiply by 100%.

$(18)/(15) \cdot 100 = 120$

Thus, 120 is the correct answer.

if you fold a rectangular piece of paper in half six times how many equal parts of the paper do you make

Answers

You'll leave 64 equal pieces on the paper.

64 eq194, 55, 94 noob

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What is the answer and work to 15% of 375