Significant Figures and Metric System
100 has this many significant figures
1
With an atomic number of 5, Boron ALWAYS has 5 of these
Protons
1
This is the first stage in all stars' life cycles
Nebula
This is the branch of chemistry dealing with molecules that contain the element carbon
Organic chemistry
100.0 has this many significant figures
4
Carbon-14 has this many neutrons
8
Every atom wants this many valence electrons
8
This is the hottest phase that our sun will eventually go through
White dwarf
He created the first periodic table
Dmitri Mendeleev
10 meters is equal to this many kilometers
0.01 km
O-2 has this many electrons
10
When potassium forms an ion, it will always form an ion with this charge
+1
If carbon undergoes beta decay, this element is formed
Nitrogen
H-3 has this many neutrons
2
1 kilogram has this many milligrams in it
1,000,000 mg
Uranium-238 has this many neutrons
146
When nitrogen forms an ion, it will always form an ion with this charge
-3
If Uranium undergoes alpha decay, this element is formed
Thorium
Group 17 (7A) is called this
Halogens
6 x 6 = ______ when you account for significant figures
40
Europium has this many protons
63
F, Cl, Br, I, At, or Ts
If silicon undergoes positron emission, it becomes this element
Aluminum
Name 3 properties of metals
Malleable, ductile, good conductors of electricity, form cations