Which two elements are in the liquid form at STP?
Br and Hg
Which element is the most electronegative?
F
Which element is found in smoke detectors?
Am
Which element is found in diamond?
C
Which isotope is used to detect cancer?
Cobalt-60
J.J. Thomson
Which scientist arranged the elements in the periodic table according to the atomic number?
Henry Moseley
Which scientist performed the Gold Foil experiment?
Ernest Rutherford
Which scientist arranged the elements in the periodic table according to the atomic mass?
Which scientist proposed the Billiard Ball Model for the atomic structure?
John Dalton
What kind of bond exists when there is mutual sharing of electrons between two atoms?
Covalent Bond
What kind of bond exists in a case in which there is an interaction involving a hydrogen atom located between a pair of other atoms having a high affinity for electrons?
Hydrogen Bond
What kind of bond exists in a case in which the electron density is unevenly shared between two bonded atoms, due to a difference in electronegativity?
Polar Covalent Bond
What kind of bond exists if there is a transfer of electrons?
Ionic Bond
What kind of bond arises from the electrostatic force between conduction electrons and positively charged metal ions?
Metallic Bond
What is the conversion of one chemical element or an isotope into another chemical element?
Transmutation
How do we call different structural forms of the same element in the same physical state?
Allotropes
How do we call a mixture in which the composition is uniform throughout the mixture?
Homogeneous
How do we call a metal made by combining to or more metallic elements, especially to give greater strength or resistance to corrosion?
Alloy
Which process involves two lighter atomic nuclei combine to form a heavier nucleus?
Fusion
State the type of bond, formula, and the name if there is a bond between Calcium and Chlorine.
Ionic
CaCl2
Calcium chloride
State the type of bond, formula, and the name if there is a bond between Phosphorus and Bromine
Covalent
PBr3
Phosphorus tribromide
State the type of bond, formula, and the name if there is a bond between Potassium and Iodine
Ionic
KI
Potassium Iodide
State the type of bond, formula, and the name if there is a bond between Fe3+ and Chlorine
Ionic
FeCl3
Iron (III) chloride
State the type of bond, formula, and the name if there is a bond between Magnesium and Sulfur
Ionic
MgS
Magnesium sulfide