Electron Configuration
1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p5
Is the electron configuration for which element?
Bromine
Who is the most metallic metal on the PT
Francium
Halogens have what charge?
-1
What 2 kinds of particles make up the nucleus?
Protons and neutrons
Which sublevel (s, p, d, f) are also known as the transition metals
d block
P orbitals have what shape?
propellor or peanut
How has more shielding Ca or Sr
Sr
How many valence electrons are in group 2?
2
What is an isotope?
an atom that has same protons and different number of neutrons
The elements on the periodic table are arranged according to this number.
atomic number or number of protons
What is the maximum number of electrons in a "d" sublevel?
10
Who has the highest electronegativity Na or Cl?
Cl
Why are noble gases unreactive?
full outer shell p6 makes them electronically stable
What are the charges on protons, electrons and neutrons
protons are positive
electrons are negative
neutrons are not charged
How many sig. figs are 0.0320
3
What are the 6 exceptions?
Cr, Mo, Cu, Ag, Au, Pd
Who has the largest radius Mg or S?
Mg
What is the charge on oxygen when is ionizes?
-2
What is formed when a metal reacts with a nonmetal
ionic compound (a salt)
The rows of the period table are arranged so that the _________ are on the left side and the __________ are on the right side
metals on the left
non metals on the right
Write the shorthand electronic configuration for 83Bi
[Xe] 6s2 4f14 5d10 6p3
What happens to reactivity as you go down group 1?
increases
What is the electron configuration of Ca when it ionizes?
same as Argon 1s2, 2s2, 2p6, 3s2, 3p6
What are cations and anions?
cation - positive ion
anion - negative ion
The lightest noble gas?
Helium