Ch 25 Flashcards
1
Q
elements after Bi have…………
A
predominant isotopes that are radioactive
2
Q
elements before Bi have……..
A
predominant isotopes the are NOT radioactive
3
Q
atom with stable nucleus is radioactive/nonradioactive?
A
nonradioactive
4
Q
atom with non stable nucleus is radioactive/nonradiotactive?
A
radioactive
5
Q
alpha radiation/particles
A
emission of proton
same as nucleus of the atom
6
Q
binding energy
A
the super glue of the nucleus
7
Q
high BE
A
high stable
8
Q
radioactive elements have
A
low BE
9
Q
how do we measure stability of elements?
A
half-life bc energy can’t be measured
the longer the half-life the more stable an element is
10
Q
fission
A
break apart (decay)
11
Q
fusion
A
bring together -> bring two atomic nuclei together to make a new element
12
Q
geiger counter
A
device that detects radioactivity
