Particle mass charge location
protons 1.673*10 ^ - 27 kg 1.6*10 ^ -19 C in the nucleus
neutrons 1.675*10 ^ - 27 kg 0 in the nucleus
electron 9.11 * 10 ^ - 31 kg -1.6 * 10 ^ - 19 C around the nucleus (orbitals)
Protons and neutrons have almost same masses. Mass of electrons is 1/1840 the mass of the protons.
Protons and electrons have the same magnitud of charge with different sign. Protons are positive and electrons are negative. Neutrons do not have charge.
Answer:
The Retention factor (rf) value is = 0.2
Explanation:
- Retention factor (Rf) is factor used substances that could be separated using Chromatography. Retention factor determines how fast the component can move on the chromatogram (stationary phase) after elution. Elution occurs when mobile phase (solvent) moves across the stationary phase when the solute has been spotted on the origin.
- Retention factor (Rf) ranges from value between 0 and 1. The closer the value to 1, the faster it can move upon elution. Rf can be calculated.
- Rf value = distance moved by the solute / distance moved by the solvent
= 0.40cm / 2.00cm
= 0.2
The air is too "rich" to burn above the upper limit, but the situation might soon deteriorate into danger: For instance, increasing the air in a space can quickly reduce the product's vapor percentage to levels that are within its flammability range, which could have explosive effects.
<h3>Why should we handle combustible materials carefully?</h3>
Flammable liquids and gases need to be handled and stored carefully since they have low flash points. Never assume that these items won't catch fire. You must continually keep in mind the safety precautions for handling and storing combustible products if you want to keep both you and your company safe.
<h3>What must be kept out of the vicinity of combustible chemicals?</h3>
To prevent them from getting engaged and stoking a fire, combustible objects including cardboard, paper towels, sawdust, and waste must be kept away from flammable storage spaces. All flammable liquid containers must be kept closed while not in use to further help avoid fires.
learn more about flammable chemical here
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Carbon Dating:
Basically when an organism is living it continuously absorbs Carbon-14 (which is a radioactive isotope of Carbon-12).
When the organism dies no more Carbon-14 is absorbed.
This means as the Carbon-14 atoms begin to decay the amount of Carbon-14 in the organism drops.
Scientists compare the amount of Carbon-14 found in the sample compared to the amount of Carbon-14 found in living things to determine the age of the sample.
Hope this helps :)
Answer: By the way that population is treated and also by new borns.
Explanation: new borns are given traits based off their parents but also new traits that are developed off of their own. Now if that population has access to resources and a lot of it. Chances are they will become bratty,selfish and things such as.
