Segundo o Princípio da Exclusão de Pauli, cada orbital atómica pode acomodar, no máximo, dois eletrões com spins opostos. Explica como se justifica, no modelo quântico, o número de eletrões correspondentes ao pico com energia 3,67 MJ mol-1, no espetro fotoeletrónico do sódio. Apresenta num texto estruturado e com linguagem científica adequada a explicação solicitada.

the positions which points up in upward carbon and down in downward carbon are axial

and vice versa holds true for equatorial positions

so the correct answer with labelled diagram will be

nacl or sodium chloride is an ionic compound. this is because an ionic compound pertains to a compound that consists of positively and negatively charged ions. in this case, na (sodium) has a tendency to lose one electron when it reacts with with other atoms, so the resulting sodium ion contains 11 protons and 10 electrons, thus making it positively charged (na+), when chlorine reacts, it usually gains one electron to form an ion called chloride, thus making it negatively charged ( since the ions are oppositely charged, they attract.

1. a)c-14 has two more protons

2. d)they have different numbers of protons, neutrons, and valence electrons; they are all gases at room temperature.

3. c) iron and nickel.