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Nickel-63 has a life-line of 92 years how much nickel-63 would remain in a sample initially containing 20 micrograms of nickel-63 at the end of 184 years?
[*Note: The half-life of 63Ni is 100.1 years for future reference....] 5 micrograms. half life is 91.6 years, goes into 184 2 times, 20 X 1/2=10, 10 X 1/2=5. 5 micrograms. 184/96 = 2. 20/2=10 10/2=5 nob
How do you calculate the atomic radius of nickel?
The atomic radius of nickel is not directly calculated but is typically determined experimentally using X-ray crystallography or other techniques. The atomic radius is defined as half the distance between the nuclei of two adjacent atoms in a crystal lattice. For nickel, the atomic radius is approximately 0.124 nm.
What is the voltage of a galvanic cell made with silver and nickel?
1.05 V
What are the half reactions for a galvanic cell with an and ni electrodes?
In a galvanic cell with an anode made of zinc (Zn) and a cathode made of nickel (Ni), the half-reactions are as follows: at the anode, zinc undergoes oxidation, represented by the reaction ( \text{Zn} \rightarrow \text{Zn}^{2+} + 2\text{e}^- ). At the cathode, nickel ions are reduced, given by the reaction ( \text{Ni}^{2+} + 2\text{e}^- \rightarrow \text{Ni} ). This creates a flow of electrons from the zinc anode to the nickel cathode, generating electrical energy.
How much is the element nickel inside a regular nickel?
25% of of the element nickel is inside a united states money nickel.
Is a nickel half a dime?
Yes, a nickel is half a dime!
You have two coins Their sum is fifty-five cents One of them is not a nickel What coins do you have?
You have a half dollar and a nickel. One of them, the half dollar, is not a nickel.
What is the half life of nickel poisoning in the blood?
Nickel poisoning does not have a half life. Half life refers to the breakdown of radioactive substances.
What 2 coins make 55 cents but ones not a nickel?
one is the US half dollar The "other one" is a nickel 50c the "other one" is a nickel
What two coins equal 55 cents without a nickel?
The actual wording of this puzzle is "What two coins equal 55 cents if one of them is not a nickel?"The answer of course is a half dollar and a nickel. The half is the coin that's not a nickel.
You have two US coins that have a total value of 55 cents and one of them is not a nickel What are the two coins?
The answer is a nickel and a 50 cent piece (half dollar). The question states that *one* of them is not a nickel, but the other coin may be a nickel. In fact, this is the only answer. One is a half dollar and the other is the nickel. This way, one is not the nickel, the other is the nickel.
What are two coins that total up to 55 cents?
A half dollar and a nickel. One of them isn't a nickel, the other one is.
What to coins makes 55 cents but one is not a nickel?
A half dollar and a nickel. One of them isn't a nickel, the other one is.
How do you get 55 cents from 2 coins if 1 can't be a nickel?
There are 2 ways of answering it, first is this is usually some form of a "trick question" where the answer is, "a half dollar and a nickel, because the half isn't a nickel". However, a more technical answer would be that you would have one half dollar and one half-dime (half dimes were minted from 1792-1873, they were small 90% silver coins half the weight of a dime, the nickel is much larger and started being minted in 1866 and is 75% copper and 25% nickel)
What elements are in a half dollar?
Copper and nickel.
I have two us coins totaling 55 cents One is not a nickel what are the coins?
It is impossible, since no coin + half dollar = 5 cents besides a nickel. 1,5,10,25,50, $1 are the coin denominations of today. However, if you used a half dime, it could technically work out, as 50 half dollar + 5 half dime = 55 cents. A half dime is a coin worth 5 cents. A nickel today, is just a name for 5 cent coins. For example cent or penny is a name for a 1 cent piece as a dime is a name for a 10 cent piece etal. Todays nickel is made of copper and silver.
What a half dollar is made of?
Since 1971, U.S. half dollars have been made of nickel-coated copper (91.67% copper and 8.33% nickel).
