Wednesday
August 27, 2014

Homework Help: physical science

Posted by Jameisha on Sunday, November 30, 2008 at 3:55pm.

Before 1937, all naturally occurring elements had been discovered, but no one had found any trace of element 43. Chemists were still able to predict the chemical properties of this element (now called technetium), which is widely used today for diagnosing medical problems. How were these predictions possible? Which elements would you expect to be similar to technetium?

Answer this Question

First Name:
School Subject:
Answer:

Related Questions

Science - Before 1937, all naturally occuring elements had been discovered, but ...
Science. plz help!! - What is the physical and chemical characteristics of the ...
Ununhexium/atoms - I don't understand, according to the periodic table at web ...
integrated physics and chem - Element A and element B have bonded and formed ...
IPC - Element A and element B have bonded and formed compound AB. Which of the ...
biology - I have some questions that relate to table 2.1 which lists the ...
Chemistry - ONe day, you were walking along the road with your friend and saw a ...
Chemistry - When scientist first negan grouping element that had similar ...
chemistry - I want to make sure I am correct in classifying whether the ...
Science - what is the element Sulfurs phase in nature, Physical and Chemical ...

Search
Members