2 Answers. The atomic number, Z , is precisely the number of protons, positively charged, massive, nuclear particles, so Z = 11 .
What is the identity of an element with 11 protons 11 electrons and 12 neutrons?
If you have 11 protons and 12 neutrons this is an atom of what element? Any atom that contains exactly 11 protons is an atom of sodium .
What is the atomic number of a sodium atom that has 11 protons and 12 neutrons *?
Sodium has a mass number of 23amu. Since sodium has 11 protons, the number of neutrons must be 23 – 11 = 12 neutrons.
What is the charge of an atom with 11 protons 12 neutrons and 11 electrons?
What is the electrical charge of the nucleus of an atom that has 11 protons and 11 electrons? The 11 positive protons cancel out the 11 negative electrons, and the overall charge of the atom is zero .
What is the atomic number of sodium 11?
| Group 1 97.794°C, 208.029°F, 370.944 K | Block s 0.97 | Atomic number 11 22.990 | State at 20°C Solid 23 Na | Electron configuration [Ne] 3s 1 7440-23-5 |
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Which element has a mass number of 39 and 20 neutrons?
| Sub Shell Max Electrons | d 10 | f 14 |
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Does sodium have 1 valence electrons?
A: An atom of a group 1 element such as sodium has just one valence electron .
What element has 51 neutrons?
| Name Zirconium | Atomic Number 40 | Atomic Mass 91.224 atomic mass units | Number of Protons 40 | Number of Neutrons 51 |
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What element has 17 protons and 18 neutrons?
An element with 17 protons will always be chlorine . However an element’s mass numbers can vary, which means that it can have different numbers of neutrons. So although chlorine has a mass number of 35 which means it has 18 neutrons, it can also have a mass number of 37, which means it has 20 neutrons.
What has 4 protons and 5 neutrons?
4 protons, 5 neutrons, and 4 electrons are there in an atom of beryllium .
What is the charge of sodium if it has 11 protons and 11 electrons?
If sodium loses an electron, it now has 11 protons, 11 neutrons, and only 10 electrons, leaving it with an overall charge of +1 . It is now referred to as a sodium ion. Chlorine (Cl) in its lowest energy state (called the ground state) has seven electrons in its outer shell.
Do all sodium atoms have 11 protons?
Since all sodium atoms have 11 protons , this one has 11 protons. This tells us that it also has 11 electrons. Since the mass number is 23, we know that the sum of protons and neutrons in the nucleus must equal 23.
What is the charge of a sodium Na atom that has 11 protons and 11 electrons?
A neutral sodium atom, for example, contains 11 protons and 11 electrons. By removing an electron from this atom we get a positively charged Na + ion that has a net charge of +1 .
Why is sodium named Na?
The name derives from the English soda and Latin sodanum for “headache remedy” . The symbol Na derives from the Latin natrium for “natron” (soda in English). Sodium was discovered in 1807 by the English chemist Humphry Davy from electrolysis of caustic soda (NaOH).
