20 июл. 2022 г. · Helium atoms have 2 electrons. Both electrons fit into the 1s subshell because s subshells can hold up to 2 electrons; therefore, the electron ... Electron Configurations · Electron Configurations and... |
17 июл. 2023 г. · Helium atoms have 2 electrons. Both electrons fit into the 1s subshell because s subshells contain one s orbital which can hold up to 2 ... |
17 июн. 2017 г. · Explanation: Helium has 2 valence electrons, located in period 1, group 18 and in S-block. Therefore its electron configuration is, 1s2. |
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