The ions of Noble gases, <em>group VIII</em> elements have a full octet configuration on their outermost shell and as such are highly stable.
The periodic table is a systematic arrangement of elements in order of their atomic numbers into a set of 8 columns each called groups and a set of 7 rows each called a period.
Elements are arranged in different groups according to the number of Valence electrons they have.
- For instance, elements in the group I of the periodic table are highly electropositive and as such are highly reactive.
The same is evident in group 7 elements are highly electronegative and have high electron affinity and as such are unstable and reactive.
- However, Noble gases, <em>group VIII</em> elements have a full octet configuration on their outermost shell and as such are highly stable.
Consequently, the <em>Noble gases ion</em> has a stable Valence electron configuration.
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Some benefits are that DDT helps us grow crops and keeps pests off our crops.
But DDT is harmful to the environment. If it gets into the water ways then if can harm fish and animals that eat the fish such as birds.
Answer:
= 74.4 grams / mole. Ernest Z. The reaction will produce 15.3 g of KCl
Explanation:
1. KI
2. AlBr₃
3. CsNO₃
4. Al₂(CO₃)₃
Explanation:
1. potassium (K⁺) iodine (I⁻) - KI
2. aluminium (Al³⁺) bromine (Br⁻) - AlBr₃
3. caesium (Cs⁺) nitrate (NO₃⁻) - CsNO₃
4. aluminum (Al³⁺) carbonate (CO₃²⁻) - Al₂(CO₃)₃
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formulas for the ionic compounds
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Covalent example ch4 where carbon is covalently bonded with all 4 hydrogens