You have a container filled with 12 moles of neutral lithium. how much negative electric charge is contained in the electrons of all the lithium atoms in the container

3469248 C

Explanation:

Avogadro’s number represent the number of the constituent particles which are present in one mole of the substance. It is named after scientist Amedeo Avogadro and is denoted by .

Avogadro constant:-

Thus, number of atoms of lithium in 12 moles =

Also, 1 atom of lithium has 3 electrons.

So, number of electrons in 12 moles of lithium atoms =

Charge on 1 electron =

So,

Total negative charge = = 3469248 C

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.

the seeing the electronic configuration we can say that the element is fluorine.

fluorine is the most electronegative element in the periodic table.

but by only seeing the configuration we cannot say about its reactivity because we don't know if its configuration after excitation or by addition of electrons.

but if not then, it is the lightest halogen and exists as a highly toxic pale yellow diatomic gas at standard conditions. as the most electronegative element, it is extremely reactive: almost all other elements, including some noble gases, form compounds with fluorine.