Natural beryllium isotopes are: Be-7, Be-9, Be-10.
no it is not
one
Beryllium has 4 protons and electrons and a variable number of neutrons, depending on the isotope. For other atomic properties see the links bellow.
The two most common isotopes of beryllium are beryllium-9 and beryllium-10. Beryllium-9 is stable and more abundant, while beryllium-10 is a radioactive isotope with a half-life of about 1.4 million years.
Yes, if you have a sample of pure beryllium, all the atoms would be identical in terms of their atomic structure. Each beryllium atom has the same number of protons (4), neutrons (typically 5 in the most common isotope), and electrons (4), giving it consistent chemical properties. However, there may be slight variations in isotopes if the sample contains different isotopic forms of beryllium, but these isotopes would still share the same chemical behavior.
Magnesium has some similarities with beryllium.
You can tell that the beryllium atom is unstable because beryllium only has 2 valence electrons in its outer shell. An atom becomes stable when it has eight valence electrons, so in the case of beryllium it would have to lose those 2 electrons in its outer shell to become stable. often forming a cation with a 2+ charge.
yes, all elements have isotopes. some stable, some radioactive.
Atomic mass numbers are not properties of elements overall, but only of particular isotopes of elements. The only stable element with an isotope with mass number 11 is boron. Beryllium and carbon also have isotopes with mass number 11, but these are radioactive.
Obtain some beryllium;Take a picture of it.See the link bellow; but be sure that the fresh surface of beryllium is more white than the image.
Some examples are deuterium and tritium which are radioactive isotopes of hydrogen.
These isotopes are unstable and emit radiation.