Which scientists built the cathode ray
J.J. Thompson
How many protons does chlorine have?
17
What is the electron configuration of helium?
1s^2
Which element does chlorine have to combine with to become a noble gas
Na
Which direction does the metallicity go horizontal wise
Right to left
Which scientists came up with idea of atoms
Dalton
How many protons does aluminum have
13
What is the electron configuration of iron
1s^2 2s^2 3s^2 3p^6 4s^2 3d^6
What element does Selenium have to combine with to become a noble gas
Calcium
Which direction does the atomic radius go virtually
Up to down
Which scientists discovered the nucleus?
Rutherford
Which element has 76 protons with a charge of positive two?
Os
Electron configuration of sodium
1s^2 2s^2 2p^6 3s^1
What element does silver have to combine with to become a noble gas?
Mo
If a question is referring to weight it is referring to what category
Atomic radius
Which experiment led to discovery of the nucleus
Gold Foil
Which element has 49 protons with a charge of negative 5?
In
What element is 1s^2 2s^2 2p^6 3s^2 3p^6 4s^2 3d^10 4p^5
Br
What element would S have to combine with to be a noble gas
Mg
In group 14, which has the most electronegativity
C
Which scientists contested electrons were on specific energy rings
Heisenberg
Which element has 62 protons with a charge of positive 70
Sm
What is the noble gas configuration of Ba
Xe 6s^2
What element would As have to combine with to be a noble gas
Ga
In the fourth level of energy, which is the most metallic
K