Match the group to the type of ions they form.
Column A
1 Group 1A
2 Group 2A
3 Group 3A
4 Group 4A
5 Group 5A
6 Group 6A
7Group 7A
8 Group 8A
Column B
a. -1
b. +3
C. -2
d. +2
e. +1
f. -3
g. +4/- 4
h. 0
1. Group 1A - e. +1
2. Group 2A - d. +2
3. Group 3A - b. +3
4. Group 4A - h. 0
5. Group 5A - c. -2
6. Group 6A - f. -3
7. Group 7A - a. -1
8. Group 8A - g. +4/-4
Group 1A - e. +1
Group 2A - d. +2
Group 3A - b. +3
Group 4A - h. 0
Group 5A - c. -2
Group 6A - f. -3
Group 7A - a. -1
Group 8A - g. +4/-4
To match the groups in Column A to the type of ions they form in Column B, we need to understand the general trends in ion formation for each group.
Column A:
1. Group 1A: This refers to the alkali metals, including elements like lithium (Li), sodium (Na), potassium (K), etc. Alkali metals in Group 1A tend to lose one electron to form +1 ions. Therefore, the match in Column B is "e. +1."
2. Group 2A: This refers to the alkaline earth metals, including elements like beryllium (Be), magnesium (Mg), calcium (Ca), etc. Alkaline earth metals in Group 2A typically lose two electrons to form +2 ions. Therefore, the match in Column B is "d. +2."
3. Group 3A: This group includes elements like boron (B), aluminum (Al), gallium (Ga), etc. Elements in Group 3A tend to lose three electrons to form +3 ions. Therefore, the match in Column B is "b. +3."
4. Group 4A: This group includes elements like carbon (C), silicon (Si), germanium (Ge), etc. Elements in Group 4A can form different types of ions, depending on the specific compound they are involved in. For example, carbon can form -4 ions (as in methane, CH₄) or +4 ions (as in carbon dioxide, CO₂). Since this group can form ions with different charges, it does not have a specific match in Column B.
5. Group 5A: This group includes elements like nitrogen (N), phosphorus (P), arsenic (As), etc. Elements in Group 5A tend to gain three electrons to form -3 ions. Therefore, the match in Column B is "f. -3."
6. Group 6A: This group includes elements like oxygen (O), sulfur (S), selenium (Se), etc. Elements in Group 6A tend to gain two electrons to form -2 ions. Therefore, the match in Column B is "c. -2."
7. Group 7A: This refers to the halogens, including elements like fluorine (F), chlorine (Cl), bromine (Br), etc. Halogens in Group 7A typically gain one electron to form -1 ions. Therefore, the match in Column B is "a. -1."
8. Group 8A: This refers to the noble gases, including elements like helium (He), neon (Ne), argon (Ar), etc. Noble gases in Group 8A already have stable electron configurations and do not typically form ions. Therefore, the match in Column B is "h. 0."
Matching Column A with Column B:
1a, 2d, 3b, 4g/-4, 5f, 6c, 7a, 8h