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
noname [10]
3 years ago
5

Why does a gold isotope, with an atomic number of 79, require more neutrons to be stable than a sodium isotope, with an atomic n

umber of 11?
Chemistry
1 answer:
Leya [2.2K]3 years ago
8 0

Here’s a simplified explanation.

The <em>protons</em> in the nucleus <em>repel each other</em>. The <em>neutrons provide the “glue”</em> that holds the nucleus together and prevents it from flying apart.

The “glue” is the strong nuclear force. It is strong but extremely short range. It falls off extremely rapidly as the p-n distance increases.

A <em>neon atom</em> has 10 protons. There are three stable isotopes, with 10, 11, and 12 neutrons.

With fewer than 10 protons, the glue is not strong enough to hold the nucleus together.

If there are more than 12 neutrons, the average p-n distance is great enough that the glue has again become too weak.

<em>Gold</em> has one stable isotope. It contains 79 protons and 118 neutrons.

If there are fewer than 118 neutrons, the proton repulsions will be too strong for the strong force. If there are more than 118 neutrons, the average p-n distance will be large enough that the glue will again be too weak to hold the nucleus toge ther.

You might be interested in
A teacher uses a bow and arrow to demonstrate accuracy and precision. She shoots several arrows, aiming at the exact center of t
RUDIKE [14]

Answer:Doing your momveryhardrn

Explanation:

She is visciously suckingmynuts

5 0
3 years ago
What is 31 degrees Celsius in Fahrenheit
vovangra [49]
87.8 , 31 Celsius=87.8(88) in Fahrenheit
7 0
3 years ago
Read 2 more answers
Draw the amide formed when 1-methylethylamine (CH, CH(CH,)NH,) is heated with each carboxylic acid.
Margarita [4]

Answer:

Explanation:

.

8 0
3 years ago
Name 3 sources of co2
Veronika [31]

Answer: There are both natural and human sources of carbon dioxide emissions. Natural sources include decomposition, ocean release and respiration. Human sources come from activities like cement production, deforestation as well as the burning of fossil fuels like coal, oil and natural gas.

Explanation:

4 0
3 years ago
A sample of a substance has these characteristics:
MArishka [77]
<span>Those characteristic belong to an ionic compountd. Ionic compounds have strong bonds between their atoms (ionic bond is the strongest molecular bond) which conferes this kind of compounds high melting point, wich 9811 K is. Ionic compounds do not transmit current, because they do not have free electrons, like metals do, then they are poor conductors as solid. Ionic compounds dissolve in water into ions which are charges that can move, becoming then good conductors. The structure of ionic compound is a net of cristals which make them hard and brittle. Then, the answer i s option (4) an ionic compound.</span>
6 0
3 years ago
Read 2 more answers
Other questions:
  • A prescription medication requires 5.98 mg per kg of body weight.
    15·1 answer
  • A hydrate of CuSO4 has a mass of 12.98 g before heating. After heating, the mass of the anhydrous compound is found to be 9.70 g
    10·2 answers
  • 41 to
    12·1 answer
  • I dunno which one it is could someone help please?​
    13·2 answers
  • An 80.0-gram sample of water at 10.0°C absorbs 1680 Joules of heat energy. What is the final temperature of the water? a 50.0°C
    10·1 answer
  • What is earth's crust mainly composed of ​
    7·2 answers
  • What is the approximate temperature of 1.4 moles of a gas with a pressure of 3.25 atmospheres in a 4.738-liter container
    8·1 answer
  • What is the mass of 22.4L of H2 at stp
    15·1 answer
  • Which describes the law of conservation of matter?
    9·1 answer
  • draw the lewis structure, including unshared pairs, of the following molecule. carbon has four bonds in the compound. propane (c
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!