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
Valentin [98]
3 years ago
14

How can you use the periodic table to find the number of protons in one atom of an element?

Chemistry
2 answers:
RoseWind [281]3 years ago
7 0
The answer is A because the number of protons is the same number as the elements atomic number and it always will be same thing with neutrons
evablogger [386]3 years ago
6 0
A is your answer.
On the periodic table the atomic number is the number of protons inside the nucleus.
You might be interested in
There are 55.0 g of neon gas in a 3.0 L cylinder, the pressure is 4.5 atm what is the temp of the gas
marshall27 [118]

Answer:

60.9 Kelvin

Explanation: First, write out everything that you know. You are tring to find the temperature, so the temperature will be represented by x.

Pressure (P)= 4.5 atm

Volume (V)= 3L

Number of Moles (n)= ?

Gas Consant (R)= 0.0821, if the pressure is in atm, that means r is 0.0821

Temperature (T)= x

We don't have all the information we need to plug the values into the equation. We still need to know how many moles 55.0 grans of neon is.

Ne in Grams= 55

Atomic Mass of Ne= 20.1797

55/20.1797= 2.7  

moles= 2.7

Now that we have all the information we need, plug everying into the equation. In case you don't know, the Ideal Gas Law Equation is PV= nRT.

(4.5)(3) = (2.7)(0.821)x    

x= 60.9

Now you have your temperature! It is 60.9 in Kelvin.

4 0
3 years ago
HELP ME ASAP<br> !!!!!!!!!!
Cloud [144]

Answer:

the yellow one

Explanation:

it includes direction

3 0
2 years ago
Read 2 more answers
Anna studies the color of her bedroom wall using different lights. In sunlight, she sees that the wall is white. Anna darkens th
Marizza181 [45]

Answer: C white

Explanation:

4 0
3 years ago
Read 2 more answers
Help me
Valentin [98]

Answer:

South American

Explanation:

When you look at a map of plates, only South American forms a boundary with the African plate out of those specific plates

6 0
3 years ago
Read 2 more answers
What is the coefficient of Ca(OH)2 in the equation Ca(OH)2 + HNO3 → Ca(NO3)2 + H2O when balanced using the smallest possible coe
Vikentia [17]

Answer:

The coefficient of Ca(OH)2 is 1

Explanation:

Step 1: unbalanced equation

Ca(OH)2 + HNO3 → Ca(NO3)2 + H2O

Step 2: Balancing the equation

On the right side we have 2x N (in Ca(NO3)2 ) and 1x N on the left side (in HNO3). To balance the amount of N on both sides, we have to multiply HNO3 by 2.

Ca(OH)2 + 2HNO3 → Ca(NO3)2 + H2O

On the left side we have 4x H (2xH in Ca(OH)2 and 2x H in HNO3), on the right side we have 2x H (in H2O). To balance the amount of H on both sides, we have to multiply H2O on the right side, by 2.

Now the equationis balanced.

Ca(OH)2 + 2HNO3 = Ca(NO3)2 + 2H2O

The coefficient of Ca(OH)2 is 1

4 0
3 years ago
Other questions:
  • Calculate the solubility of carbon dioxide in water at an atmospheric pressure of 0.400 atm (a typical value at high altitude).A
    5·1 answer
  • Which reaction takes place in a nuclear fission reactor
    9·2 answers
  • When should you start taking Collagen
    8·2 answers
  • What reagent is used to test for the presence of indole?
    13·1 answer
  • Nitrogen from a gaseous phase is to be diffused into pure iron at 700°C. If the surface concentration is maintained at 0.26 wt%
    8·1 answer
  • Products in which titanium is used?
    15·1 answer
  • A word used to describe if one substance can be dissolved in another
    12·1 answer
  • Mrs. Lu wanted to test which brand of dishwasher detergent cleaned her plates the best Theaning which one left the least amount
    6·1 answer
  • Liquid nitroglycerin has a density of approximately 1.60 g/mL. The nitroglycerin decomposition reaction equation is:
    6·1 answer
  • Which word help the reader understand the meaning of stratum in paragraoh 3.
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!