Answer:
imaginary because i see no line.
Explanation:
Answer: ZnS
Explanation: usually salts of alkali metals are well soluble in water.
Also most nitrates are well soluble.
Sulfides of transition metals are generally insoluble in water
<span>"A molecule represents the </span>smallest part<span> into which a </span>compound<span> can be divided and still </span>retain<span> its chemical and physical </span><span>properties" (socratic.org)</span>
Ionization energy is the energy needed to remove a valence electrón from a gaseous atom.
The energy needed to remove the first electron is the first ionization energy.
The stronger the atom atracts its electrons the higher the ionization energy.
A low ionization energy means that the atom may loose one electron easily to form a positive ion (cation)
In the period 3, sodium has the lowest ionization energy (it forms sodium ion easily), aluminium has a higher ionization energy (meaning that it is more difficult to form a positive ion) and Chlorine will never lose an electron to form a positive ion (on the contrary Chlorine is willing to accept one electron from other atom to form a negative ion, i.e. an anion).
The growing of the ionization energy inside a period is due to the size of the growing positive charge (number of protons) in the nucleous, which implies a stronger atraction to the electrons of valence.
