Units/Scientific Notation/Metric System/Sig Figs
Write the following in scientific notation: 25,600
What is 2.56x104?
This is how much of an element decays away in one half life.
What is half?
Ions have a different number of these from neutral.
What are Electrons?
This is the maximum number of electrons that the s-orbital can hold.
What is two?
This is the name of the columns on the periodic table.
What is groups/families?
Convert 5,000 g to kg
What is 5 kg?
We have 20 mg of a radioisotope Carbon-15 with a half-life of 2.5 seconds. After 6 half lives, this is how much of the element is left.
What is 0.313 mg?
Isotopes have a different amount of these from a neutral atom.
What are neutrons?
This is the maximum number of electrons the p orbital can hold.
What is six?
Halogens are classified as this. (Metals, Non-Metals, or Metalloids)
What is non-metals?
This is the metric unit is used to measure distance.
What is Meters?
Radon-234 has a half-life of 3.6 days. If you start with 50 mg of Radon-234, this is how many days would it take to have 12.5 mg.
What is 7.2 days?
This is the name for a positively charged ion and this is the name for a negatively charge ion.
What is cation? and What is Anion?
This is the number of electrons that all elements want to have in their outermost shell.
What is 8?
As we move across a period from left to right, this is how the atomic number changes.
What is increase?
This the number of sig figs are in the following number:
0.0050300
What is 5?
In beta decay, this is ejected from the atom.
What is an electron?
This is how many electrons the cation Cl+ has.
What is 16?
This element has the following electron configuration.
1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d¹⁰ 4p⁶ 5s² 4d¹⁰
What is Cadmium?
Groups 16 has ___ valence electrons.
What is 6?
In terms of value, "kilo" represents this... (10x)
What is 103?
Uranium-238 undergoes alpha decay. This would be the element it decays into.
What is Thorium?
This is how many neutrons Silicon-34 has.
What is 20?
This element has the following electron configuration.
[Xe] 6s² 4f⁶
What is Samarium?
In terms of electron configuration, Nickel (Ni) ends up in this orbital (Block).
What is the d orbital/block?