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
HACTEHA [7]
2 years ago
5

In order for an atom to have a zero charge, every proton, which has a charge of +1, must be matched with an electron, which has

a charge of -1. A helium atom has 2 protons and 2 electrons. Explain why a helium atom has a zero charge.
Mathematics
1 answer:
Hitman42 [59]2 years ago
3 0

Answer:

A helium atom has no charge, which means it has an oxidation number of 0. ... Since the numbers of protons and electrons are equal, the positive charge of the protons and the negative charge of the electrons add up to zero.

Step-by-step explanation:

You might be interested in
Simplify this expression.<br> 20.25 – 9 + 11<br> о<br> 1<br> 4<br> 0 18.75<br> 0<br> 21?<br> 0 40.75
Greeley [361]

Answer:

21\frac{3}{4}

Step-by-step explanation:

Step 1: Add the numbers.

20.25 can also be expressed as 20\frac{1}{4}, because \frac{2025}{100} = \frac{81}{4} = 20\frac{1}{4}. So if we add 20\frac{1}{4} and 11, we would get 31\frac{1}{4}

Step 2: Solve

31\frac{1}{4} -9\frac{1}{2}

  • Subtract the whole numbers

31-9=21

  • Combine the fractions

This means addition. Also, since our denominators are not the same value, we have to find the LCM (Least Common Denominator): What do 2 and 4 have in common that they can divide themselves by? 4. We know this because 2 divided by 4 is 2, and 4 divided by 4 is 1, so they can both divide themselves by 4.

\frac{5}{4}-\frac{1}{2}

LCM

\frac{5}{4}-\frac{2}{4} =\frac{3}{4}

Therefore, the simplified expression to this is 21\frac{3}{4}.

Learn more: brainly.com/question/403991

8 0
3 years ago
You sell pies at a farmers' market for $7.50 each. A group of 5 kids wants to pitch in equal1y to share one of your pies. How mu
Korolek [52]
Its 5 divided my 7.50 since each decided to pitch in to help by the pie
3 0
3 years ago
Read 2 more answers
A rectangular pyramid has a length of 14 centimeters, a width of 9 centimeters, and a height of 10 centimeters. explain the effe
klemol [59]
The volume of a rectangular pyramid = 1/3 ×Area×height
=1/3×L×W×H
if the dimensions were doubled
therefore,
V=1/3 × (9×2)×(14×2)×(10×2)
=1/3×18×28×20
=3360 cubic centimetres
3 0
3 years ago
Which of the following are solutions to the equation below?
Over [174]
B and E are correct.
5 0
2 years ago
Please help I still do not understand these questions
solniwko [45]

Answer:

m = 2/5

Step-by-step explanation:

easy

4 0
2 years ago
Other questions:
  • Question 3 (Multiple Choice Worth 6 points)
    6·1 answer
  • Please help me on question 4 and 5 I am really stuck thank you I would really appreciate it
    5·1 answer
  • Question 8 (1 point)
    13·1 answer
  • If the slope of a line is 3 and a point on the line is (1,-2), the y-intercept of the
    12·1 answer
  • What is the standard form of the number shown in this calculator display? 5.93e-5
    6·2 answers
  • Which expression is equivalent to the expression: -3(4x-2)-2x
    10·2 answers
  • 1.
    13·1 answer
  • Question 3
    14·1 answer
  • Betty is three times as old as her son now. In 12 years, Betty's age will be three years less than twice her son's age. How old
    12·1 answer
  • )) Fill in the missing number.<br> ()) 70% of<br> =<br> 56
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!