Na podstawie położenia w u. o. oraz liczb A i Z: - oblicz ilość cząstek elementarnych, ustal ilość powłok oraz elektro-nów walencyjnych,
- narysuj uproszczony model i zapisz konfigurację elektronową izoto-pów;
Zadania sprawdzające
a) ²⁴10Ne
b) ⁴⁰15P

Pauling and lewis questioned the extreme definitions of bonds. they wondered if bonds might be described somewhere in between the two extremes (covalent and ionic). on the basis of experimental data,pauling confirmed that bonds could be ionic, covalent, and for those, in between, exhibit a degree of ionic character. he theorized that the major factor was how strongly the atoms in the bond attracted the electrons. pauling called this factor - the tendency of an atom to attract electrons in a bond.

How manyatoms of mercury are in 1.4214e+1 ml sample

An alloy contains 66 g of pure zinc. what is the percentage of zinc in the alloy? express your answer to two significant figures and include the appropriate units.