If there are 11 protons, THERE MUST be 11 electrons orbiting around the atom, because the element here is NEUTRAL. If it is a 23Na nuclide, there must be 12 neutrons in the nucleus.
Does sodium have 3 electrons?
Explain that sodium has 11 protons and 11 electrons. There are 2 electrons on the first energy level, 8 electrons on the second level, and 1 electron on the third energy level.
How many protons does sodium 12 have?
Since sodium has 11 protons, the number of neutrons must be 23 – 11 = 12 neutrons.
Do you have 11 electrons?
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. The mass number of an element tells us the number of protons AND neutrons in an atom (the two particles that have a measurable mass).
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.
How do you find the electrons?
To calculate the numbers of subatomic particles in an atom, use its atomic number and mass number:
number of protons = atomic number.number of electrons = atomic number.number of neutrons = mass number – atomic number.
How many electrons does NaCl have?
A salt such as sodium chloride (NaCl) is a good example of a molecule with ionic bonding (see Figure 3-3). The atomic number of the element sodium (Na) is 11, meaning that a sodium atom possesses eleven protons and eleven electrons. Its electronic configuration is 1s2 2s2 2p6 3s1.
How many neutrons does sodium have?
Given the fact that there are 12 neutrons in sodium, the complete symbol for sodium is 2311Na.
Why is sodium atomic mass 23?
It is the 11th element, that is, its atomic number is 11. Mass number = Total number of protons + Total number of neutrons Sodium atom has 11 protons and 12 neutrons in its nucleus. Thus, we get the atomic mass number 11 + 12 = 23.
Does sodium have 8 valence electrons?
Sodium has one valence electron. The element has a full innermost electron shell of two electrons and a full shell of eight electrons in the next shell. The third shell, which is the outermost and the valence shell, has only one electron. Valence electrons influence chemical reactivity.
