Whats the difference between an atom and an ion?

2 answers:

7 0

An atom is the fundamental unit of matter and it contains an equal number of protons and electrons in its nucleus which makes it electrically neutral. An ion however, is an atom containing an unequal number of protons and electrons which means it will either carry a net positive charge or negative charge depending on whether there are more electrons or protons.

igor_vitrenko [27]3 years ago

6 0

Answer:

atoms are neutral or they have equal number of proton and electron but ions can be cation(positively charged) or anion(negatively charged) based on the number of electron the atom lose and gain respectively

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Mass = volume x density

volume = πr²
since Diameter = 2.5 cm
then radius = 1.25cm

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A substance has a boiling point of 78 °C. Which of the following is true about the substance?

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Answer:

When the substance is cooled, its temperature will fall below 78 °C after 100% of the vapor has changed to liquid.

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Boiling point is the temperature at which a liquid changes state from liquid form to gaseous form without change in temperature. It may defined as the temperature at which the vapor pressure is equal to the pressure of the gas above the liquid.
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What is the IUPAC name of this compound?

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