What element has 81 protons in the nuclei of its atoms?
A. Thallium
B. Uranium
C. Platinum
D. Lead
A?
I don't know anything about chemistry. You might find your answer in one of these sites.
http://www.google.com/#q=what+element+has+81+protons+in+the+nuclei+of+its+atoms
What type of map is best suited for maritime navigation?
A. Topographic
B. Mercator projection
C. Geologic
D. Conic projection
B?
Yes, B.
What are the three particles of an atom?
A. Electron, proton, and isotope
B. Proton, neutron, and electron
C. Neutron, electron, and ion
D. Proton, ion, and valencium
B?
I don't know.
Please post this question with Chemistry as your school subject!
B is correct.
Atoms are made up of Protons, Neutrons, and electrons. I know this off the top of my head.
I hope this helps! :)
P.S. Please look at the post with your diamond question and scientific notation question.
Thank you, Brady.
You're welcome, Ms. Sue. :)
Which statement best describes the composition of magma
To determine the element that has 81 protons in the nuclei of its atoms, you can refer to the periodic table. The atomic number of an element corresponds to the number of protons it has in its nucleus. So, find the element with atomic number 81 on the periodic table.
In this case, option A is Thallium. To confirm, locate Thallium on the periodic table and check its atomic number. If it is 81, then the correct answer is A.