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
vredina [299]
3 years ago
15

Without calculation what is the approximate atomic mass of neon

Chemistry
1 answer:
Aleksandr [31]3 years ago
8 0

20 u

You can’t do this without some calculation.

The easiest way is to argue that most atoms of neon have <em>10 protons</em> and 1<em>0 neutrons</em>.

Each proton and neutron has a mass of about 1 u, so the approximate atomic mass of neon is 20 u.


You might be interested in
Choose a depiction of a gas sample containing equal molar amounts of xenon and argon as described by kinetic molecular theory. R
Setler79 [48]

Answer:

On the attached picture.

Explanation:

Hello,

At first, it is important to remember that kinetic molecular theory help us understand how the molecules of a gas behave in terms of motion. In such a way, the relative velocity of a gas molecule has the following relationship with the gas' molar mass:

V∝\frac{1}{\sqrt{M} }

That is, an inversely proportional relationship which allows us to infer that the bigger the molecule the slower it. In this manner, as argon is smaller than xenon, it will move faster.

Now, as the gases are in equal molar amounts and considering that argon moves faster, on the attached picture you will find the suitable depiction of the gas sample, since red dots (argon) have a larger tail than the blue dots (xenon).

Best regards.

7 0
2 years ago
Read 2 more answers
Which will NOT occur when a light tray ray interacts with a smooth pane of glass?
zhuklara [117]

Answer:

B) diffraction

Explanation:

A smooth pane of glass does not diffract light. A light passing through a smooth pane of glass may be absorbed, reflected or transmitted.

Diffraction only occurs with special types of glasses embedded with a diffraction grating and are called super prisms. Diffraction glasses use a a gradient lens which is able to  separate light into all the colors of the rainbow.

Recall that diffraction is the separation of white light into its component wavelengths.

5 0
2 years ago
Sodium sulphate reacts with calcium nitrate to produce sodium nitrate and calcium sulphate. A) identify the reactants and produc
Rudik [331]

Answer:

yes ...................

6 0
3 years ago
9. Write a balanced nuclear equation for the following: The isotope Strontium-90 decays by Q-
Sergio039 [100]

Answer: _{38}^{90}\textrm{Sr}\rightarrow _{36}^{86}\textrm{Kr}+_2^4\textrm{He}

Explanation:

Alpha Decay: In this process, a heavier nuclei decays into lighter nuclei by releasing alpha particle. The mass number is reduced by 4 units and atomic number is reduced by 2 units.

General representation of an element is given as:   _Z^A\textrm{X}

where,

Z represents Atomic number

A represents Mass number

X represents the symbol of an element

General representation of alpha decay :

_Z^A\textrm{Sr}\rightarrow _{Z-2}^{A-4}Y+_2^4\alpha

The  balanced nuclear equation when the isotope Strontium-90 decays by Q-  decay is :

_{38}^{90}\textrm{Sr}\rightarrow _{36}^{86}\textrm{Kr}+_2^4\textrm{He}

4 0
3 years ago
Sebastian wants to write the chemical formula for phosphorus tetraoxide. He identifies the chemical symbols as P and O. Which ad
denis23 [38]

Answer:

The answer is B

Explanation:

6 0
3 years ago
Other questions:
  • 25 Points Please Help ASAP! Will Mark Brainliest If All Are Answered!!
    11·1 answer
  • At STP, which gas sample has a volume of 11.2 liters?
    7·1 answer
  • Rachel carson wrote this book, which exposed the deadly impact of ddt and chemical pesticides on wildlife.
    13·1 answer
  • A strontium-90 atom that has lost 2 electrons has ________ protons, ________ neutrons, and ________ electrons.
    14·2 answers
  • 7.00×10−3 mol of HBrare dissolved in water to make 12.0 L of solution. What is the concentration of hydroxide ions, [OH-], in th
    7·2 answers
  • What type of reaction breaks the bonds that join the phosphate groups in an ATP molecule?
    5·1 answer
  • A particle that orbits the nucleus in an atom is called an
    6·2 answers
  • Water (10 kg/s) at 1 bar pressure and 50 C is pumped isothermally to 10 bar. What is the pump work? (Use the steam tables.) -7.3
    10·1 answer
  • What would happen to the population of an animal if its food source were removed from the food web
    11·1 answer
  • Why does moon have different appearance?<br><br>NONSENSE = REPORT ​
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!