Periodic Table
Atomic number of Phosphorous (P)?
15
How many significant figures does the measurement 2.500 meters have?
4
What is the term for the type of reaction in which energy is released?
Exothermic
How many electrons can the S orbital hold?
2
What type of bond forms between two metals?
Metallic
What type of element is magnesium (Mg)?
Alkaline earth metal
What is 100 degrees Celsius in Kelvin?
373 K
Would energy be absorbed or released if an electron is moved from orbit 1 to 3?
Absorbed
How many valence electrons does sulfur (S) have?
6
What types of elements do ionic bonds form between?
Metals and non-metals
Which element is larger? : Fluorine (F) or chlorine (Cl)
Chlorine (Cl)
If a food contains 5 kcal/gram, how many kcal are in 10 grams of that food?
50 kcal
If you touch an endothermic reaction, does it feel hot or cold?
Cold
Which electron sublevel comes after 3d?
4p
Which atom is more electronegative? (Li or F)
F
What is the charge of phosphorus (P) as an ion?
-3
What is the value 300x102 written in the correct form of scientific notation?
3x104
What type of energy transfer only works with fluids?
Convection
How many orbitals are in the F sublevel?
7
What type of alloy is formed between metals and similar sized elements?
Substitutional
What is the mass number of 2713Al3+?
27
Convert 250 Joules to kiloJoules.
0.25 KJ
Calculate the heat absorbed by aluminum if 5 grams changes temperature from 20 Celsius to 40 Celsius. C = 0.9 J/gC
Q = m x C x change T
90 Joules
How many TOTAL electrons does an ion of Al3+ have?
10
Formula unit between ions of Ca and F?
CaF2