Protons
/Neutrons/Electrons
/Neutrons/Electrons
3517Cl-1
How many protons does this atom have?
17 protons
What are the three particles of radioactivity?
Alpha, Beta, gamma particles
Where are the halogens at on the periodic table?
Group 7 or Group 17
What does atomic radius trend mean?
As atoms gain electrons and protons, the size of an atom changes.
Metals become what type of ion?
Cation
3517Cl-1
How many neutrons does this atom have?
35-17 = 18 neutrons
Place the three particles in order of decreasing penetration power.
Gamma, Beta, Alpha
Which group contains the alkaline earth metals?
Group 2
What is the electronegativity trend?
As you go right on the periodic table, the electronegativity increases.
As you go down, it decreases.
Metal bonded with a nonmetal creates what type of bond?
Ionic
3517Cl-1
How many electrons does this atom have?
17+1 = 18 electrons
Which has the greatest ionization power?
Alpha particles
List all of the Diatomic elements correctly.
H2, N2, F2, O2, I2, Cl2, Br2
What element has the greatest atomic radius?
Francium or Cesium
Bond includes a sea of electrons
Metallic
A nuclide has a mass number of 37 and 20 neutrons. What is this isotope?
3717Cl
What is missing in this equation:
23892U + ________ -> 23992U
10n = neutron
How do you find the number of valence electrons on the periodic table?
Second number of the column number.
What element has the greatest electronegativity?
Fluorine
This bond has very low melting and boiling points.
Covalent
What does the atomic number tell us about the element?
The number of protons
What is missing from this equation:
146C -> 147N + _______
0-1 e or 0-1B Beta particle
Which group contains the nonmetals in the form of gases only that are very un reactive?
Group 18 or Group 8
Why does the trend of electronegativity occur?
More protons create a stronger nuclear pull, shrinking the atom and pulling electrons closer.
Having 7 electrons makes the elements want one more electron.
What type of bond will sodium and chlorine make?
Ionic