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How many atomic shells does sodium have?
List of elements with electrons per shell
| Z | Element | No. of electrons/shell |
|---|---|---|
| 11 | Sodium | 2, 8, 1 |
| 12 | Magnesium | 2, 8, 2 |
| 13 | Aluminium | 2, 8, 3 |
| 14 | Silicon | 2, 8, 4 |
What element has the same valence electrons as sodium?
While the elements with one valence electron are located on the left of the periodic table, the elements that need one valence electron to complete their outermost shells are found in the second to last column. For example, in the same row as sodium, the element in the next-to-last column is chlorine.
What two elements have the same atomic number?
Isotopes are atoms that have the same atomic number (and are therefore of the same element) but different mass numbers. The composition of atoms of the naturally occurring isotopes of carbon are shown in Table 4.2. we can write carbon-12, carbon-13, and carbon-14.
What element is most similar to sodium?
Rubidium is a soft, white metal; it is similar to sodium and potassium in its reaction with water, but the reaction is even more violently exothermic. Its name is derived from the Latin word for deep red (ruby), rubidius.
What two elements have the same properties as sodium?
So, the elements with similar properties to sodium (Na) are all of those elements in the same Group. The ones “most” similar would be the ones closest in mass as well. Those would be Lithium (Li) and Potassium (K).
Why do elements have the same atomic number?
The atomic number is the same as the number of protons. The atomic mass is the sum of the number of protons and neutrons. For ions (which may either have a positive or negative charge), only the number of electrons are being changed. If the ion is negative it means that an electron has been added to the configuration.
Does atoms of the same element have the same atomic number?
All atoms of a chemical element have the same atomic number (number of protons in the nucleus) but may have different mass numbers (from having different numbers of neutrons in the nucleus). Atoms of an element with the same mass number make up an isotope of the element.
What is the atomic number of sodium in periodic table?
Sodium – Periodic Table Element Sodium Atomic Number 11 Symbol Na Element Category Alkali Metal Phase at STP Solid
Is sodium a metal or nonmetal?
Sodium is a soft, silvery-white, highly reactive metal. Sodium is an alkali metal, being in group 1 of the periodic table, because it has a single electron in its outer shell that it readily donates, creating a positively charged atom—the Na+ cation. Sodium is a chemical element with atomic number 11 which means there are 11 protons in its nucleus.
Is sodium an alkali metal or a cation?
Sodium is an alkali metal, being in group 1 of the periodic table, because it has a single electron in its outer shell that it readily donates, creating a positively charged atom—the Na+ cation. Sodium is a chemical element with atomic number 11 which means there are 11 protons in its nucleus.
What is the mass number of Typical isotopes of sodium?
Isotopes are nuclides that have the same atomic number and are therefore the same element, but differ in the number of neutrons. Mass numbers of typical isotopes of Sodium are 23. Atomic mass of Sodium is 22.9897 u.