Chemistry Unit Test Pt 2 Flashcards
Where are electrons found in an atom
In the orbit
Where are protons and neutrons found in an atom
Nucleus
What 3 things makeup an atom
Electron, proton, neutron
What is another name for groups
Families
What direction do groups go in
Up and down
What direction do periods go in
Horizontal (like a sentence)
What does the last # of a group number tell you?
of valences electrons
What does the # of of periods tellb you
of orbits
What are the 4 family’s called
Alkali metals, Alkali earth metals, halogens, noble gases
What family # is Alkali metals
Group #1
What group # is Alkaline Earth metals
2
What group # is Halogens
17
What group number is nobel gases
18
Nobel gases don’t undergo chemistry because…
They are stable
What are the two types on ions
Cations & anions
What charge is cations
Positive (PAW-sitive) —> getting rid of negatives makes it more positive
What charge are anions
Negative
Atomic mass is the same # as _____ & _____
of protons & # of electrons
Density triangle :
M
D\V
Two kinds of compounds
Ionic compounds & molecular compounds
- What splint do you use with hydrogen
- what happens
- lighted splint
- hear pop
- What splint do you use with oxygen
- what happens
- glowing
- re lights splint
- What kind of splint do you use with Carbon dioxide
- what happens
- lighted splint
- goes out
How do you name an ionic compound
Metal —> non metal ends with ide
Ex: aluminum chloride
