Individuals who share a common cultural background and a common sense of identity are known as an ethnic group.

1) true
2) false

Ethene molecular fórmula= c2h4molecular weight = 29.046g/molhope it : )

Order of filling levels and sublevels of electrons: 1s²2s²2p⁶3s²3p⁶4s²3d¹⁰4p⁶5s²4d¹⁰5p⁶6s²3f¹⁴5d¹⁰6p⁶for an element with 5 electrons in the 3d energy level: full configuration: 1s²2s²2p⁶3s²3p³.

Answer the same molecular formula;