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Describe the structure of an atom and define the terms atomic number; atomic symbol, atomic mass, and mass number....

Question

Describe the structure of an atom and define the terms atomic number; atomic symbol, atomic mass, and mass number.

Describe the structure of an atom and define the terms atomic number; atomic symbol, atomic mass, and mass number.



Answers

Define the terms atomic number and mass number. What symbols are used to designate these terms?

So the atomic mass refers to the mass than Adam in units of atomic mass units or the mass of a mole of atoms in units of grams, it takes into account everything that is present. The protons, the neutrons and the small mass associated with the electrons. The atomic mass number is the number of protons and the number of neutrons. Just the atomic number by itself is just the number of protons. Not really a mass. It's just a number describing the number of protons.

So today we're asked with the atomic number and the mass number of a nucleus represents. The atomic number is usually depicted as the letter Z and tells us the number of protons and in the nucleus. The mass number, on the other hand, is depicted with the letter A and it represents the total number of protons and electrons. So if we take a look at a certain in elements such as oxygen, oxygen has eight protons and a mass number of 16 so the eight protons would be considered Z and 16. What could be would be considered a mask number.

So today we're asked with the atomic number and the mass number of a nucleus represents. The atomic number is usually depicted as the letter Z and tells us the number of protons and in the nucleus. The mass number, on the other hand, is depicted with the letter A and it represents the total number of protons and electrons. So if we take a look at a certain in elements such as oxygen, oxygen has eight protons and a mass number of 16 so the eight protons would be considered Z and 16. What could be would be considered a mask number.

So this video is going to be talking about Adams? Um, we're specifically gonna be talking about what makes up and at them some numbers that are associated with, um and then how they get their charge. So and Adam is just the smallest unit of matter. And as we know, matter is just something that takes up space. So the chair you're sitting on this matter, the paper you're writing on this matter, um, Adam's air, just the smallest form of matter possible. So the three things that are going to make up Adam's are going to be protons, which have a positive charge. Neutrons, which are neutral, have a neutral charge, and then electrons having negative charge. So the way the atoms air set up is in a picture. Down here, you can see, um, there's a nucleus. And then there's orbital's, so the protons and neutrons are going to be found in the nucleus while the electrons are gonna be found in the orbital's. So here you'll see there's proton and a neutron both in the nuclear. And then you've got your little electrons in these orbital's. Okay, so now you know what a Adam looks like we're gonna be talking about, Um, probably one of the most popular atoms, which is gonna be hydrogen. It's also the simplest, um, in these two numbers I wrote in are going to be the atoms atomic number and the mass number. So the atomic number is just going to be, um, the number of protons in the animus nucleus here. And then the math number is going to be the total number of protons and neutrons, plus new trends in the atoms nucleus. So two forms of hydrogen that we're gonna be talking about are going to be the neutral form and then the ion form, which is right here with the positive charge. So the way that um, Adams get their charge is going to be with the protons and electrons. They're gonna be canceling each other out. Or there's gonna be extra. Um, so I'll show you an example here, so the neutral form is going to have one proton, zero neutrons, and then one electron in these two are just gonna cancel each other out. You've got one positive one. Negative cancels out, and it's, um, here you can see there's no charge on it and then the positive form or the ion is going to have one proton again. No new trance. In this time, it's gonna have no electron. So it losses electron to something else and it doesn't have it anymore. So since the Proton has a positive charge, is just gonna keep that charge is gonna be a positive hydrogen ion.


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