Math
How many significant figures in 0.0809?
3
The charge of a neutron
Neutral/no charge
The orbital with the lowest energy
s
This tells you the number of protons and is how elements are arranged on the periodic table
Atomic number
The distance between nuclei of two atoms
Atomic radius
How many milliliters in a liter?
1000
The subatomic particles found in the nucleus
protons and neutrons
The number of electrons in a p orbital
6
The number below the element symbol
Mass number
The ability to attract electrons when bonded to another atom
Electronegativity
The accepted body temperature is 98.6o F. Your body temperature is 98.9oF. What is the percent error?
0.3%
An atom with 11 protons will have this many electrons
11
The element with the configuration 1s22s22p2
Carbon
Noble gases are in this group on the periodic table
18
Ionization energy ____ from left to right and ____ from top to bottom
Increases, decreases
Calculate the average atomic mass if Isotope A has a mass of 67.30 with a 4% abundance, and Isotope B has a mass of 70.10 with a 96% abundance.
69.99 amu
The discoverer of the electrons
JJ Thomson
Electrons that become excited, jump up energy levels, and fall back down will release this
Light or photons
The middle block of elements
Transition metals
Which element is most electronegative?
Fluorine
A polar bear needs to eat 4.4 lb of fat each day. One pound of fat = 454 g. How many kg of fat do they need per day?
1.9976 kg--> 2.0 kg of fat per day
A Br-82 isotope will have this many neutrons
47
What is the electron configuration for Scandium (Sc)?
1s22s22p63s23p64s23d1 or [Ar] 4s23d1
A reactive element that is a poor conductor, liquid at room temperature, and has a mass number of 80
Bromine
Why are group 1 elements so reactive?
Easily lose electrons