The most common isotope of gold has atomic number 79 and atomic weight 197
How many protons and neutrons does the gold nucleus contain? Assuming the gold is electrically neutral, how many electrons does it have? If the gold is triply ionized, how many electrons does it have?
The most common isotope of gold contains 79 protons and 118 neutrons. If it is neutral, it also contains 79 electrons. If the gold is triply ionized instead, it is missing 3 electrons and so has only 76 electrons.
You might also like to view...
Which of the following molecules would probably be isolated closest to the top of a fractionating tower at a refinery?
A) C4H10 B) C8H18 C) C10H22 D) C20H42 E) C40H82
Which of the following is the underlying reason why Venus has so little wind erosion?
A) its relatively close distance to the Sun B) its slow rotation C) its thick atmosphere D) its small size
If Q = 80 nC, a = 3.0 m, and b = 4.0 m in the figure, what is the magnitude of the electric field at point P?
a.
45 N/C
b.
70 N/C
c.
29 N/C
d.
47 N/C
e.
92 N/C
What class of material is the least expensive per unit volume that for certain has an elastic modulus of over 100 GPa?
(a) GFRP (b) Concrete (c) Cast iron (d) Steel