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Q: What do elements with atomic numbers 1 3 11 19 37 55 87 have in common?
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Which element has an atomic mass of11?

Atomic mass numbers are not properties of elements overall, but only of particular isotopes of elements. The only stable element with an isotope with mass number 11 is boron. Beryllium and carbon also have isotopes with mass number 11, but these are radioactive.


Which elements atomic nucleus contains 11 protons?

Sodium


How many protons are in sodiums most common isotope?

Eleven. This because sodium has an atomic number (also the number of protons) of 11 on the periodic table. All the elements listed on the table are the most common (or only) isotopes of those elements.


What is the least common multiple of the numbers 2357and 11?

The least common multiple of the numbers 2,357 and 11 is 25,927.The least common multiple of the numbers 23, 57 and 11 is 14,421.


What is the atomic numbers of a sodium atom that has 11 protons and 12 neutrons?

Sodium's atomic number is always 11 and is always the same as its protons.


What is the coordination number of NaCl?

The is no atomic number for NaCl (sodium chloride) as it is a compound and atomic nuber applies to elements. NaCl is made of the two elements sodium and chlorine. Sodium's atomic number is 11. Chlorine's atomic number is 17.


What is the most common isotope for boron?

BORON 511 atomic#=5, atomic mass = 11 (for most common isotope)


What were the numbers of the elements in period 3?

11-18.


Is 11 the average atomic number for Sodium?

Yes: to be a sodium atom, an atom must have an atomic number of 11. Therefore, the average of all such numbers will also be 11.


What is the least common multiple of 910 and 11?

The least common multiple of the numbers 910 and 11 is 10,010. The least common multiple of the numbers 9, 10 and 11 is 990.


What are the atomic numbers of carbon sodium and nickel?

6, 11 and 28 respectively.


What are the names and numbers of the particles in an atom of sodium?

The atomic number is 11 and atomic mass is 23. The number of protons and electrons in sodium is 11 and the number of neutrons is 12