関連する話題: A fourth diary in English; 政治家は無給にするべき; Let’s enjoy English! 4

Let's enjoy English!

No.375　13/03/18 21:42
燻し銀三 ( 50代 ♂ Oe38xe ) あ+あ-

【What is an isotope 同位体?】

Radioactive material,radioactive element,and radioactive isotope.I'm wondering if we've heard them somewhere. If they are different,how different are they?At first,what is the isotope?😃

《The isotope》

While things of which atomic number are same,the things of which amount of mass are different.We call them the isotope.😃

An atomic nucleus is so heavy that it looks as if it were a boss in the atom,but it's not the atomic nucleus but electrons which rule chemical nature and reaction in the atom.😃

Therefore,the isotopes of which atomic number are same have same chemical nature.💡

《Hydrogen's isotopes》

For example,hydrogen's atomic number is 1,but it has three kinds of isotopes.The one is 軽水素,its amount of mass is 1,and it has no neutron.The other is heavy hydrogen,and its amount of mass is 2,and it has one neutron.Another is 三重水素.Its amount of mass is three,and it has two neutrons.😃