Answer:
The outermost shell of helium for example is filled with only two electrons. Hydrogen and lithium become stable by acquiring the electronic configuration of the nearest inert gas, which is helium. This is the duplet (or duet) rule.
Explanation:
Answer:
- Option <em>A), Planck.</em>
Explanation:
The first scientist to propose that an object could emit only certain amounts of energy was <em>Max Planck</em>.
Incandescent (very hot) objects emit different color of lights, i.e. different wavelengths, but by 1900 it was believed that the light (energy) was emitted in a continuous way.
Since the wave model did not explain the emission of such specific wavelengths, when the German physicist <em>Max Planck</em> (1858 - 1947) studied the light emitted by incandescent objects, he proposed that the objects (the matter) could gain or lose energy only in small specific amounts or packages of energy called quanta (plural of quantum).
Planck, later, established the mathematical relation between the energy of a quantum of light with the frequency of such the radiation (light emitted). This is the formula:
Where, E is the energy, h is Planck's constant, and ν is the frequency.
Answer: a) 
is the limiting reagent
b) 0.27 g of 
will be produced.
Explanation:
To calculate the moles :
According to stoichiometry :
3 moles of require = 2 moles of 
Thus 0.003 moles of will require=
of
Thus is the limiting reagent as it limits the formation of product and is the excess reagent.
b) As 3 moles of give = 2 moles of
Thus 0.003 moles of give = of
Mass of 
Thus 0.27 g of will be produced.
Answer:
we use atom in our sentences all the time
Explanation:
that what i put
The answer is <span>B. Fusion occurs inside the sun. It creates light and heart that sustain life on earth.
The Sun creates its own energy through fusion. This also happens in larger stars as well.
Have a good day! =)</span>
