Test 1 Flashcards
(55 cards)
How do you get from Kelvin to Celsius?
K - 273.15 = C
What is kilo-?
10^3
What is hecto-?
10^2
What is deca-?
10^1
What is deci-?
10^-1
What is centi-?
10^-2
What is milli-?
10^-3
What is micro-?
10^-6
What is nano-?
10^-9
What is Avogadro’s number?
6.022x10^23
What is an ionic bond?
A bond where one atom takes an electron from another and they are bound via the negative-positive charges that result from that interaction
What is a molecular bond?
A bond where two atoms share electrons, if the sharing is unequal the bond is polar.
What are ions?
Different charged versions of the same element due to a different number of electrons
What are isotopes?
Different versions of the same element due to a different number of neutrons– increasing atomic mass
What is Zeff?
Effective nuclear charge (protons - inner electrons), the electrons that actually have an effective charge
What is electron affinity?
the energy required to add an electron to an atom, increases up and across the periodic table approaching fluorine
What is ionization energy?
the energy required to remove an electron, increases up and across the periodic table approaching fluorine
What is electronegativity?
how well an element can attract electrons, increases up and across the periodic table approaching fluorine
What is atomic radii?
basically atom “size”, increases the further left and down the periodic table you go
What are halogens?
Group 17, starts with flourine
What are chalcogens?
Group 16, starts with oxygen
What are pnictogens?
Group 15, starts with nitrogen
What is a homogenous mixture?
even dispersion of mixture components
What is a heterogeneous mixture?
uneven dispersion of mixture components
