Atomic Atomic Electron Element Symbol Period Number Mass Configuration 1s2 2s2 2p6 3s2 3p6 4s2 Ruthenium 5 15 Ta 87.62 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d10 5p6 6s2 4f14 5d10 6p2 15
Element Symbol Atomic Number Atomic Mass Period Electron Configuration 1s2 2s2 2p6 3s2 3p6 4s2 Ruthenium 5 15 Ta 87.62 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d10 5p6 6s2 4f14 5d10 6p2 15
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