Sodium has a mass number of 23amu. Since sodium has 11 protons, the number of neutrons must be 23 ” 11 = 12 neutrons.
Do all sodium atoms have 11 protons?
This number is known as the atomic number, which identifies the number of protons in the nucleus of ALL atoms in a given element. The symbol for the atomic number is designated with the letter Z. For example, the atomic number (z) for sodium (Na) is 11. That means that all sodium atoms have 11 protons.
The correct answer is 23.
What atom has 11 protons 12 neutrons 11 electrons?
Let’s look at a sodium atom. It has 11 protons and 12 neutrons in its nucleus, and 11 electrons outside the nucleus. Sodium is one of several atoms that easily donates an electron.
The particle that contains 10 electrons, 11 protons and 12 neutrons is a positively-charged sodium ion (Na+).
How many protons does sodium 12 have?
Since sodium has 11 protons, the number of neutrons must be 23 ” 11 = 12 neutrons.
What isotope has 12 protons 11 neutrons and 12 electrons?
Magnesium, in its elemental form, has 12 protons and 12 electrons. The neutrons are a different matter. Magesium’s average atomic mass is 24.305 atomic mass units, but no magnesium atom has exactly this mass.
What is the atomic number of the atom that has 11 protons 11 electrons and 12 neutrons quizlet?
The sodium atom contains 11 electrons, 11 protons, and 12 neutrons.
What is the atomic number of 11?
What element has a atomic number of 11?
Atomic Number 11 Element Facts ” Na or Sodium.
What is the atomic mass of sodium if it has 11 protons 11 electrons and 12 neutrons?
The mass number is 23.
How many protons does sodium have?
11
What isotope has 11 protons?
The 11 protons makes an atomic number of 11. Sodium 2311Na is the most common isotope of sodium.
What isotope contains 11 protons 10 electrons and 12 neutrons?
Answer: Sodium has an atomic number of 11.
What element has 11 protons and 11 neutrons in its nucleus?
The element with 11 protons is sodium Na. The sum of the protons and neutrons is the mass number, A, and is equal to 22.
How many neutrons does sodium 12 have?
How many electrons protons and neutrons are there in an atom of sodium if sodium has an atomic number of 11 and a mass of 23?
An atom of sodium has 11 protons, 12 electrons, and 11 neutrons.
What is the atomic number of an element containing 12 neutrons and having a mass number of 24?
For example, magnesium exists as a mixture of three isotopes, each with an atomic number of 12 and with mass numbers of 24, 25, and 26, respectively.
What is the atomic mass of an atom that contains 12 protons 12 electrons and 12 neutrons?
Again the mass number is the sum of the number of neutrons and the number of protons. So the mass number is 12+12=24.
Which element contains 12 protons 12 electrons and 13 neutrons?
The charge is the difference in the number of protons compared to the number of electrons. You can read more about charge, protons, and electrons later on. From the example, you can see that this magnesium atom would have 12 protons, 13 neutrons, and 10 electrons.
What is the atomic number of an element with 12 protons?
On the periodic table of elements, magnesium is represented by the symbol Mg. It has an atomic number of 12 because it has 12 protons in its nucleus.
What is the atomic number of a sodium atom that has 11 protons and 12 neutrons quizlet?
What is the atomic number of a sodium atom that has 11 protons and 12 neutrons? It is 11.
How many electrons located on the outermost shell of the atomic number for sodium is 11?
So, sodium’s 11 electrons are arranged this way: 2 electrons in the first “shell”, 8 electrons in the second “shell”; and 1 electron (the valence electron) in the third “shell”.
What is the atomic mass of sodium quizlet?
Likewise, the atomic mass of sodium (Na) is 22.99 amu and its molar mass is 22.99 g; the atomic mass of phosphorus is 30.97 amu and its molar mass is 30.97 g; and so on.
What is element 11 on the periodic table?
Sodium ” Element information, properties and uses | Periodic Table.
How many protons does boron 11 have?
So boron-11 has five protons the same as boron-10. Then the mass number is total protons plus neutrons.
What is the 11th element in the periodic?
Sodium is the eleventh element of periodic table.
What is 12 on the periodic table?
The symbol for atomic number 12 is Mg. The name magnesium comes from the Greek region called Magnesia, a source of magnesium-bearing compounds.
How many neutrons does sodium have?
Given the fact that there are 12 neutrons in sodium, the complete symbol for sodium is 2311Na.
What is the mass of 1 atom of sodium?
How many protons neutrons and electrons are there in a sodium atom?
The sodium atom contains 11 electrons, 11 protons, and 12 neutrons.
What element has 11 protons 11 neutrons and 10 electrons?
The unstable sodium atom loses its outer electron to become a stable sodium ion. The sodium ion still has 11 protons (11 positive charges), but now only 10 electrons (10 negativecharges).
What is the name of the atom that has 11 protons and 10 electrons?
Solution. The particle that contains 10 electrons, 11 protons and 12 neutrons is a positively-charged sodium ion (Na+).
Can an atom have 11 protons 10 neutrons and 10 electrons?
Answer. Explanation: Sodium has an atomic number of 11.
Why would the number 11 rarely be written next to sodium?
Technically, any nucleus with 11 protons is sodium. The periodic table, after all, organizes the elements by the number of protons in their nuclei, and sodium is element number 11. That says nothing about the number of neutrons the particle harbors inside.
How many electrons are there in the third shell of sodium Na atomic number 11?
There is only one electron in the third shell of a neutral sodium atom.
What is the electron configuration of an atom that has 11 protons?
Sodium has 11 protons (atomic number is 11) and has one valence electron. As the Bohr model diagram below shows, Sodium has 11 protons and 12 neutrons in the nucleus to make the mass number 23. The 11 electrons necessary to make Sodium neutral (protons = electrons) are arranged in a pattern of 2-8-1.
How many protons and neutrons are in c12?
Carbon-12 (12C): The carbon isotope whose nucleus contains six protons and six neutrons. This gives an atomic mass of 12 amu.
How many protons does carbon 12 have?
Carbon occurs naturally in three isotopes: carbon 12, which has 6 neutrons (plus 6 protons equals 12), carbon 13, which has 7 neutrons, and carbon 14, which has 8 neutrons. Every element has its own number of isotopes.
How do you find protons?
How many protons and electrons are in an atom of sodium whose atomic number is 11?
For sodium, that means there are 11 protons and 11 electrons. Since we know that there are 11 protons, there must be 12 neutrons for the mass number to equal 23 (23-11=12).
How many protons electrons and neutrons does an atom with atomic number 11 and mass number 23 contain?
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.
What is the total number of electron an atom with an atomic number of 11 and an atomic mass of 23?
Since the atomic number of an atom is 11, then the number of electrons is also 11. Hence, if an atom has atomic mass number 23 and atomic number 11, then the number of electrons is 11.
What is the atomic number of a sodium atom that has 11 protons and 12 neutrons?
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. …
What is the atomic number of an element with 12 protons 10 neutrons and 12 electrons?
This is a magnesium Ion. There are 12 protons from the magnesium atom. There are 10 electrons because 12-2 = 10.
Why does sodium have 11 electrons?
The atomic number of an element tells you how many protons that the element has. This is written at the bottom left hand side of the symbol. Since atoms are neutral, we know then that sodium atoms must also have 11 negative electrons to cancel the charge from 11 positive protons.