how do i do this:

give the number of protons, electrons, and neutrons in each of the following atoms.

108
47 Au

40
20 Ca

23
11 Na

The first one.

The atomic number is the number of protons. That is 47 in this example. The 108 is the mass number and gives the number of protons + the number of neutrons. Therefore, the number of neutrons is the mass number minus the number of protons. The number of electrons is the same as the number of protons.

ok so for the calcium one would it be

20 electrons
20 protons
and
20 neutrons?

yes, yes, and yes.

To determine the number of protons, electrons, and neutrons in an atom, you need to understand the basic structure of an atom.

1. Protons: Protons are positively charged particles found in the nucleus of an atom. The number of protons in an atom determines its atomic number and identifies the element.

2. Electrons: Electrons are negatively charged particles that orbit around the nucleus in energy levels or shells. The number of electrons in a neutral atom is the same as the number of protons.

3. Neutrons: Neutrons are neutral particles found in the nucleus of an atom. They do not carry any electrical charge. The number of neutrons can vary for an element and affects the atom's mass.

Now, let's determine the number of protons, electrons, and neutrons for the given atoms:

1. 108
This number tells us the atomic number of the element, which is the number of protons and electrons.

To find the number of protons and electrons, look up the element with atomic number 108 on the periodic table. However, element 108 does not exist in nature. In this case, you can't determine the protons and electrons without additional information.

To determine the number of neutrons, you need the atomic mass of the element. However, it is not provided in this case.

2. 47 Au

"47" indicates the atomic number of the element, which is the number of protons and electrons.
"Au" represents the element symbol for gold, as per its periodic table symbol.

So for gold (Au):
Number of protons = 47
Number of electrons = 47

To find the number of neutrons, you need the atomic mass of gold. The atomic mass of gold is 197 g/mol. Subtracting the atomic number (number of protons) from the atomic mass gives you the number of neutrons.

Atomic mass (Au) - Atomic number (Au) = Number of neutrons
197 - 47 = 150 neutrons

Hence, the number of protons, electrons, and neutrons in a gold (Au) atom is:
Number of protons = 47
Number of electrons = 47
Number of neutrons = 150

3. 40
This number is not clear without additional information. If it represents the atomic number, you can use it to determine the number of protons and electrons for the element.

To find the number of protons and electrons, look up the element with atomic number 40 on the periodic table. However, the atomic number alone is not sufficient to identify an element.

To determine the number of neutrons, you need the atomic mass of the element. Unfortunately, it is not provided here.

4. 20 Ca

"20" indicates the atomic number of the element, which is the number of protons and electrons.
"Ca" represents the element symbol for calcium, as per its periodic table symbol.

So, for calcium (Ca):
Number of protons = 20
Number of electrons = 20

To find the number of neutrons, you need the atomic mass of calcium. The atomic mass of calcium is 40.08 g/mol. Subtracting the atomic number (number of protons) from the atomic mass gives you the number of neutrons.

Atomic mass (Ca) - Atomic number (Ca) = Number of neutrons
40.08 - 20 = 20.08 (approximately 20) neutrons

Hence, the number of protons, electrons, and neutrons in a calcium (Ca) atom is:
Number of protons = 20
Number of electrons = 20
Number of neutrons = 20

5. 23
This number is not clear without additional information. If it represents the atomic number, you can use it to determine the number of protons and electrons for the element.

To find the number of protons and electrons, look up the element with atomic number 23 on the periodic table. However, the atomic number alone is not sufficient to identify an element.

To determine the number of neutrons, you need the atomic mass of the element. Unfortunately, it is not provided here.