× Didn't find what you were looking for? Ask a question
Top Posters
Since Sunday
a
5
k
5
c
5
B
5
l
5
C
4
s
4
a
4
t
4
i
4
r
4
r
4
Home Q & A Board Science-Related Homework Help Physics
New Topic  
Asiyd Asiyd
wrote...
Posts: 30
Rep: 0 0
11 years ago
What are the atomic number and atomic mass of the element formed when 218Po emits a beta particle?What are they if the polonium emits an alpha particle?
Read 1868 times
2 Replies

Related Topics

Replies
wrote...
#1
11 years ago
Polonium => atomic mass = 218, atomic number = 84 (i looked periodic table).

1) Emits beta particle:
Beta particle => atomic mass = 0, atomic number = -1.
Po Rightwards Arrow beta + X
So, atomic mass X = 218
atomic number X = 84 + 1 = 85

2) Emits alpha particle:
Alpha particle => atomic mass = 4, atomic number = 2.
Po Rightwards Arrow alpha + Y
So, atomic mass Y = 218 - 4 = 214
atomic number Y = 84 - 2 = 82
wrote...
#2
11 years ago
The Atomic Number would be: 85 and the atomic mass would be 218.... For a Beta Particle!

The Atomic Number would be: 82 and the atomic mass would be 214.... For an Alpha Particle! and the new element would be Ra!

Hope that helps!
New Topic      
Quick Reply
Explore
Post your homework questions and get free online help from our incredible volunteers
  1285 People Browsing
 123 Signed Up Today
Start New Topic Take the Tour CoursesNew Study Tools Topics Trending Browse by Textbook
Live Chat
Related Images
  
 250
  
 269
  
 1415
Your Opinion
How often do you eat-out per week?
Votes: 79
Previous poll results: Where do you get your textbooks?