# What is the number of protons for sodium 23?

## What is the number of protons for sodium 23?

11 protons
The mass number is given at the top left of the elements symbol, for example, sodium has a mass number of 23. We know that the atomic number of sodium is 11. This tells us that sodium has 11 protons and because it is neutral it has 11 electrons.

## How many protons neutrons and electrons are in the sodium 23 Ion?

So sodium has 11 protons and 11 electrons. The mass number is 23. The number of neutrons = mass number – atomic number. The number of neutrons = 23 – 11 = 12.

How do you find the number of protons in an element?

The number of protons in the nucleus of the atom is equal to the atomic number (Z). The number of electrons in a neutral atom is equal to the number of protons. The mass number of the atom (M) is equal to the sum of the number of protons and neutrons in the nucleus.

### How many full electron levels does sodium-23 have?

11 electrons
A mass number of 23 means 23 – 11 this atom will have 12 neutrons. Since this atom is neutral the positive protons must be equal to the negative electrons. This atom will have 11 electrons.

### Does sodium have 1 valence electrons?

A: An atom of a group 1 element such as sodium has just one valence electron. It is “eager” to give up this electron in order to have a full outer energy level, because this will give it the most stable arrangement of electrons.

What is the atomic mass for sodium?

22.989769 u
Sodium/Atomic mass

#### Is atomic number and mass number the same?

Be careful you don’t confuse atomic number and mass number. While the mass number is the sum of the protons and neutrons in an atom, the atomic number is only the number of protons. The atomic number is the value found associated with an element on the periodic table because it is the key to the element’s identity.

#### Is the atomic number the number of protons?

The atomic number is the number of protons in the nucleus of an atom. The number of protons define the identity of an element (i.e., an element with 6 protons is a carbon atom, no matter how many neutrons may be present).

Can sodium bond with itself?

The Composition of Metals in Metallic Bonding Metallic bonds are defined as those in which metals share valence electrons. For example, when sodium metallically bonds with itself, each atom is sharing the electrons in the third orbital with up to eight other atoms.

## Why does sodium only have one valence electron?

The highest energy 3s orbital contains one electron, therefore, neutral sodium atoms have one valence electron.

How many electrons are in an atom of NA-23?

That is because if the atomic number is 23, that means it’s the isotope Na-23 and the atomic number is the sum of protons and neutrons. There are 11 protons as it can be seen on the periodic system. The number of electrons is 10 because it is positively charged, meaning that there’s one electron fewer than the usual.

### How many protons and electrons does sodium have?

Since this atom is neutral the positive protons must be equal to the negative electrons. This atom will have Eleven electrons. The element sodium has 12 neutrons, 11 electrons and 11 protons. Click to see full answer.

### What is the net charge of sodium-23?

An atom of sodium-23 (Na-23) has a net charge of + 1. identify the number of protons, neutrons, and electrons in the atom. How did you determine the number of each type. Explain in completer s details.

Where do you find the number of protons and neutrons?

The mass number is typically found at the top. (You might see it at the bottom in the periodic table) and the atomic number at the bottom. Atomic number/number of protons = 11. Mass number/sum of protons and neutrons = 23. Number of neutrons = 23-11= 12. Number of electrons = 11 (since the sodium atom is neutral)