how many electrons in the outer shell of caesium?
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Caesium atoms have 55 electrons and the shell structure is 2.8. 18.18.
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Electrons in outermost shell are called valance electrons. (a) The electronic configuration of carbon is . So, carbon has two core electrons and four valance electrons. So, silicon has ten core electrons and four valance electrons.
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Answer and Explanation: A calcium atom has 20 protons, 20 electrons and 20 neutrons. Calcium's atomic mass is 40.08 g/mole, which rounds to 40 g/mole.
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A total of 8 electrons can be placed in the outermost shell of an atom. This rule is known as the Octet rule.
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As you can see, oxygen has 2 of its 8 electrons in the shell closest to the nucleus, and the remaining 6 electrons - which are called valence electrons - in its second shell - this is oxygen's outermost shell. In order to complete its octet, it needs 8 electrons in its outermost shell.
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Well Ca has atomic number 20 i.e. There are 20 electrons in Ca. The electronic configuration for Ca is 1S^2, 2s^2, 2P^6,3s^2, 3p6, 4s^2. The azimuthal Q. NO for second orbital is l=1.
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The third shell carries on filling up only after 2 electrons are in the 4th shell. So what happens in calcium is that 8 of the remaining 10 electrons are in the 3rd shell, and the other 2 are in the 4th shell.
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The shell closest to the nucleus, 1n, can hold two electrons, while the next shell, 2n, can hold eight, and the third shell, 3n, can hold up to eighteen. ... This outermost shell is known as the valence shell, and the electrons found in it are called valence electrons.
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Similarly, L shell is the second shell and it can hold up to 2(2)2 = 8 electrons. This formula helps to calculate the maximum number of electrons that an orbit can accommodate.
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Caesium (IUPAC spelling) (also spelled cesium in American English) is a chemical element with the symbol Cs and atomic number 55. It is a soft, silvery-golden alkali metal with a melting point of 28.5 °C (83.3 °F), which makes it one of only five elemental metals that are liquid at or near room temperature.
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Two electrons in its outermost (and only) shell, two valence electrons.
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May · Stefan V. Hydrogen has 1 outer shell which contains 1 electron.
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The answer is 8 valence electrons. The valence electrons are those in the outermost shell, i.e. theshell with the highest principal quantum number n.
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It has six electrons in its outer shell. It gains two electrons from one or two other atoms in reactions, forming an oxide ion, O 2-.
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The Group 7 elements - fluorine (F), chlorine (Cl), bromine (Br), iodine (I) and astatine (At) - have seven electrons in the outer shell.
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Vanadium atoms have 23 electrons and the shell structure is 2.8.
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This family has six electrons in the outermost shell. Selenium specifically has an electron configuration of 2-8-18-6. The six electrons in the outermost shell allow selenium to have a variety of valence numbers. Selenium compounds have been found that have valences of -2, 4, and 6.