Answer:

• LITHIUM

3

Lithium is an alkali metal with the atomic number = 3 and an atomic mass of 6.941 g/mol. This means that lithium has 3 protons, 3 electrons and 4 neutrons (6.941 - 3 = ~4).

• NITROGEN

7 electrons

Nitrogen is the seventh element with a total of 7 electrons.

• STRONTIUM

38 electrons

Strontium atoms have 38 electrons and the shell structure is 2.8. 18.8. 2. The ground state electron configuration of ground state gaseous neutral strontium is [Kr].

• KRYPTON

36 electrons

Krypton atoms have 36 electrons and the shell structure is 2.8. 18.8.

• GALLIUM

31 electrons

Gallium atoms have 31 electrons and the shell structure is 2.8. 18.3. The ground state electron configuration of ground state gaseous neutral gallium is [Ar].

• MANGANESE

25 electrons

Mn has an atomic number of 25. Simply use this information to obtain its electronic configuration. Mn: 1s22s22p63s23p64s23d5 or simply [Ar]4s23d5.

• TELLURIUM

52 electrons

Filling Orbital: 5p4. Number of Electrons (with no charge): 52. Number of Neutrons (most common/stable nuclide): 76.

• TUNGSTEN

74 electrons

The 74 electrons in the Tungsten atom revolve around the dense nucleus of the atom, which is composed of protons and neutrons.

• GADOLINIUM

• POLONIUM

84 electrons

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