actinium

Even a small amount of actinium is dangerous to people.

The series is named after actinium, the first element of the group.

There was very little actinium, indicating that no work had been done here for weeks.

Lanthanum and actinium are sometimes considered the remaining members of group 3.

Actinium is chemical element 89 on the periodic table.

The actinide series derives its name from the group 3 element actinium.

The 4n+3 chain of uranium-235 is commonly called the "actinium series".

"I say we ought to thank our new pal for giving us this actinium idea !"

At the initial stage of poisoning, actinium accumulates in the liver.

Pb is the end of the Actinium series from U.

My brain was aching badly from the over-stimulation of actinium energy.

The compound was not ordinary actinium; but it showed qualities similar to that element.

That inner wrapper had served to retain the actinium rays.

Owing to its scarcity, high price and radioactivity, actinium has no significant industrial use.

"The one where they do the remote-control actinium mining ?"

That is why, when rich deposits of actinium were discovered there, no attempt was made to mine them in the ordinary way.

The Ac is not to be confused with the abbreviation for the chemical element actinium.

This reduced actinium accumulation in the bones, but the excretion from the body remained slow.

Actinium (Ac) has no stable isotopes, thus a standard atomic mass cannot be given.

"Tenders, you fill your tanks with the actinium and pass it around !"

The shock and the fact that I hadn't been able to get a second helping of actinium were sobering my mind rapidly.

As actinium, the distribution of protactinium follows that of U.

The actinide series is the 15 chemical elements between actinium and lawrencium on the periodic table.

Protactinium is more abundant (10%) in the Earth's crust than actinium.

It's rich in actinium but has a poisonous atmosphere that instantly kills oxygen-breathers.