0
Thorium, plutonium and iron are radioactive (be sure, the natural isotope 54Fe is radioactive !).
Wiki User
∙ 10y ago
Add your answer:
Earn +20 pts
What are the different formula of the elements of chemistry?
Chemical elements have chemical symbols not a formula. Examples: Ne, C, Ir, Fe, Zr, U, Pu, K, Na, Au, Sr, Mg, Ca, Li, Tc, Am, No, Rn, Ra, Th, B etc.
What does Th mean in the periodic table?
Th is element number 90 on the periodic table It is thorium, it is in the Actinides, and it is radioactive
SI unit of enzyme?
An enzyme unit is th accepted SI unit. One enzyme unit catalyses the breakdown of 1micromole of substrate at 25 degrees celsius at optimum pH, temperature, enzyme concentration etc.
What is the first radioactive element that forms when uranium 238 decays?
The isotope 234 Th.
What are the symbols of first 20 elements?
H--hydrogen He-- helium Li-- lithium Be-- beryllium B-- boron C-- carbon N-- nitrogen O-- oxygen F-- fluorine Ne-- neon Na-- sodium Mg-- magnesium Al-- aluminum Si-- silicon P-- phosphorous S--sulfur Cl-- chlorine Ar-- argon K-- potassium Ca-- calcium
What elements tend to be radioactive?
Pu Th
What are the different formula of the elements of chemistry?
Chemical elements have chemical symbols not a formula. Examples: Ne, C, Ir, Fe, Zr, U, Pu, K, Na, Au, Sr, Mg, Ca, Li, Tc, Am, No, Rn, Ra, Th, B etc.
The symbol for the metal in common salts?
These symbols are the standardized symbols for chemical elements: some examples are Na, K, Li, Ca, Mg, Th, Cu, Fe etc.
What does pu aw and th mean on a bank statement?
Account Withdrawal
What do No Bk U Th Rn all At have in common?
They are all radioactive.
What does Th mean in the periodic table?
Th is element number 90 on the periodic table It is thorium, it is in the Actinides, and it is radioactive
What is the syllabus of MA 4 th semester mg university kottayam?
dont spoil your career in mg
Which is the most abundant radioactive element in India?
Thorium Th Cheers Sharath
SI unit of enzyme?
An enzyme unit is th accepted SI unit. One enzyme unit catalyses the breakdown of 1micromole of substrate at 25 degrees celsius at optimum pH, temperature, enzyme concentration etc.
What is the first radioactive element that forms when uranium 238 decays?
The isotope 234 Th.
What does th element symbol on the periodic table indicate?
Th symbol is used for Thorium element.It has atomic number 90.It is a radioactive actinide metal.
What is meant by th term effective half life of a radioactive isotope used in medicine?
when it ends.
