A mixture where all components are thoroughly mixed and there are no visual differences throughout the sample
EX: salt water, alcohol and water
I am an element with 14 protons... who am I? (spelling counts)
Silicon
Write the electron configuration for a neutral atom of magnesium
1s22s22p63s2
Hydrogen with a +1 charge has how many electrons?
0
Determine the mass of an atom if I know the number of protons, neutrons, and electrons
add the protons (atomic number) with the number of neutrons
What four things MUST be included in any particle diagram
key, LOCOM, kinetic energy, correct phase
What is the atomic symbol if a atom that have 17 protons, 19 neutrons, and 18 electrons
Cl mass 36, atomic # 17, charge -1
Write the abbreviated electron configuration for manganese
when you are given the charge of an atom, what math do you have to do to solve for the number of electrons?
Take the atomic number, and do the opposite operation to the chard (ex +2 charge, subtract 2 from the atomic number)
Calculate the average atomic mass of an element?
((mass of isotope 1 X %abundance) + (mass of isotope 2 X %abundance) + .........)/100
Create a separation plan for a mixture of salt, sand, water and oil
decant oil, filter sand, distill water @ 100°C, salt left behind
I am the heavier metalloid in the 4th energy level. Who am I and what is my preferred charge?
Arsenic with a charge of -3
What is the preferred charge of barium?
+2
Daily double: write the noble gas configuration of barium
Atoms in the same group have the same ___________, and therefore share the same _________________ and _______________
Atoms in the same have the same number of valence electrons, and therefore share the same characteristics and preferred charge
How do I determine what elements share similar chemical and physical characteristics?
Find elements that are in the same group/family
There are two ways to separate miscible liquids. Name both, their differences, and provide an example of a mixture of a miscible liquids
evaporation and distillation. Evap only collects one product (whatever is left behind), and distillation collects both.
EX: H2O and alcohol
What tool is used to separate isotopes of the same element and measure their relative abundances?
Mass spectrometry
Draw the orbital diagram of a neutral atom of sulfur

How many electrons does tellurium have with its preferred charge, and what element is it isoelectronic with?
Xenon, 54
How do I write the isotopic name of an atom? Give an exampl
element-mass
EX: sulfur-32 and sulfur-33
Carbon-12, carbon-13, carbon-14
Describe the separation technique and how it works that to separate pigments
Chromatography: separates pigments based on weight, and attraction to the medium that is wicking up the paper
I am a metalloid with a charge of +4. Who am I?
Germanium
Draw the orbital diagram of niobium (Nb)

An atom with 53 protons and 54 electrons has what charge?
-1
Bonus ID the element
Describe the steps we take to write the abbreviated electron configuration of an element
1. find element
2. go back one E level, find noble gas
3. bracket noble gas symbol
4. complete the remaining EC starting with the next energy level and sublevel)