Electron Configuraitons
What is the electron configuration for Magnesium?
1s2,2s2,2p6,3s2
How many protons & electrons does Carbon have?
6
Cathode ray experiments led to the discovery of the
Is flammability a chemical or physical property?
Chemical
385 m = ??? mm
385000 mm
What is the orbital notation for Magnesium?
1s2,2s2,2p6,3s2 but with arrows
What is the mass number of Phosphorous-33?
33
Who discovered that atoms have a positively charged nucleus during the gold foil experiment?
Rutherford
Is shredding paper a chemical or physical change?
Physical
230 mL = ??? kL
0.000230 kL
What is the noble gas notation for Chlorine?
[Ne] 3s2,3p5
How many neutrons does Carbon-14 have?
8
Most of an atoms volume is in the
Electron Cloud
Is shooting off fireworks a chemical or physical change?
Chemical
Write 23850000 in scientific notation with 3 significant figures.
2.39 x 107
What is the electron configuration AND orbital notation for Zinc?
1s2,2s2,2p6,3s2,3p6,4s2,3d10 and with arrows
16 protons & 17 neutrons
How are isotopes different from normal atoms?
Isotopes have different number of neutrons & therefore masses.
Are metals (true, transitional) on the left or right side of the periodic table?
Left
(6.12 x 109)(3.38 x 10-5) = ??
207000
What is the electron configuration and noble gas notation for Silver?
1s2,2s2,2p6,3s2,3p6,4s2,3d10,4p6,5s2,4d9
[Kr]5s2,4d9
What is the isotope symbol for Manganese 56? How many protons & neutrons does it have?
5625Mn
25 protons
31 neutrons
State the Law of Conservation of Mass.
Mass cannot be created or destroyed but can be converted into other forms.
Which side of a chemical reaction are the products on? Left or right?
Right
(32.500) / (2.593 x 105)
1.253 x 10-4