(b) Give the complete symbol ^AZX and indicate how many protons, neutrons and electrons are pres

Step 1: The atomic number of copper is 29, which means it has 29 protons.

(b) Give the complete symbol ^AZX and indicate how many...

Transcript

00:02 All right, so when we take a look at symbols for substances, we kind of have a box normally that looks like this, where the number in the upper left is called the mass number, which is the number of protons plus the number of neutrons in the atom.

00:25 The a is the atomic number, which is just the number of protons.

00:33 We can find that on the periodic table, the atomic number.

00:36 And the box that i have written out there is called the charge, which is equal to the number of protons plus the number of electrons in terms of their charges, where protons are plus one and electrons are minus one.

00:59 So, for instance, the charge of something that has 20 protons and 18 electrons, we would put negative 18 there for that charge.

01:10 That would be two.

01:13 All right.

01:13 So let's say we have something like copper 63.

01:21 Okay, and we want to find the number of protons, neutrons, and electrons.

01:25 What we've got to do is go over the periodic table.

01:28 And when we go to the periodic table, the atomic number for copper we can find is 29.

01:34 So that's going to tell us because the atomic number tells us protons that we have 29 protons.

01:44 Right from the atomic number.

01:49 Now we don't have a number in the charge box.

01:52 When there's no number there, we assume it's zero.

01:56 So the number of protons and the number of electrons must be the same...

Question

(b) Give the complete symbol $^A_ZX$ and indicate how many protons, neutrons and electrons are present in copper.

Question

(b) Give the complete symbol $^A_ZX$ and indicate how many protons, neutrons and electrons are present in copper.

Please give Ace some feedback