AMIGOS AYUDENME CON ESTO PORFA SE LO AGRADECERIA MUCHO, SI NO SABEN NO COMENTEN PORFA
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ELEMENTO: SIMBOLOGÍA: CONF. ELECTRÓNICA PERIODO FAMILIA
POTASIO K [Ar] 4s¹ 4.
HELIO He 1s2 1
CROMO cr [Ar] 3d⁵ 4s¹ 4
CARBONO c [He] 2s2 2p2 2
CALCIO Ca [Ar] 4s² 4
AZUFRE S [Ne] 3s² 3p⁴ 3