Choose the correct order from top to bottom of group 7.
  • F, Br, I, At, Cl
  • At, I, Br, Cl, F
  • F, Cl, Br, I, At
  • Br, Cl, I, At, F
Group 7 elements only form what type of ion?
  • 1+
  • 7-
  • 1-
  • 2-
What type of bonds do group 7 elements form?
  • Ionic and covalent
  • Covalent only
  • Metallic and covalent
  • Hydrogen and metallic
Halogens all react with metals. How many electrons do they gain when they undergo this type of reaction?
  • 2
  • 3
  • 7
  • 1
Reactivity of the elements in group 7 decreases down the group. This is because...
  • There are more electrons in the outer shell
  • The electrons in the outer shell are further away from the nucleus
  • The electrons are closer to the nucleus
  • There are more electrons in the atom
Halogens exist as molecules made up of pairs of atoms, joined together by covalent bonds. These molecules are known as...
  • Joined
  • Biatomic
  • Double
  • Diatomic
How many electrons are in the outer shell of the group 7 elements?
  • 7
  • 8
  • 1
  • 2
Iodine is...
  • a pale yellow gas
  • a dense green gas
  • a dark gray crystalline solid
  • a dark orange-brown solid
Group 7 elements are also known as...
  • Alkali metals
  • Halogens
  • Transition elements
  • Noble gasses
Bromine displaces iodine from solution because...
  • Iodine is more reactive than bromine
  • Bromine is more reactive than iodine
  • Bromine is a smaller atom
  • Iodine has more electrons than bromine
0 h : 0 m : 1 s

Answered Not Answered Not Visited Correct : 0 Incorrect : 0