Explore BrainMass

Chemical elements

This content was STOLEN from BrainMass.com - View the original, and get the already-completed solution here!

Give the chemical symbol and number of protons, neutrons, and electrons for:
a) lead with atomic mass of 206
b) hydrogen with atomic mass of 2
c) zinc with atomic mass of 65

© BrainMass Inc. brainmass.com October 24, 2018, 6:51 pm ad1c9bdddf

Solution Summary

The solution provides a detailed and step-by-step explanation for the problem.

See Also This Related BrainMass Solution

Properties of your chosen element

you are going to investigate an element of your choice. Once you have chosen and researched your element, you will create a presentation using powerpoint or Word document . Your presentation should include the following information:
• the element's name and the origin of its name
• the element's symbol, atomic number, and atomic mass
• the group/section where the element is found on the periodic table
• the element's electron configuration and number of valence electrons.
• At least eight other researched physical and chemical properties of the element should be mentioned. These properties may include but are not limited to:
o color
o texture
o ability to conduct electricity
o density
o state at room temperature
o common compounds it forms
o luster
o malleability
o ductility
o boiling point
o melting point
o potential hazards of the elements and/or its compounds
• when the element was discovered and/or created, if this information is known
• common historical and/or modern uses for this element
• citations of the resources (web sites, books, encyclopedias, etc.) that you used for your research

View Full Posting Details