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There are two reasons: increasing atomic size and increasing shielding effect.
Increasing atomic size - As you go down the Group, the atom size becomes larger, therefore the electron that must be rem...

To answer a describe question, you must make statements containing facts which answer the question. For each correct statement that you make, you will receive 1 mark. You can also develop points by adding...

A conformer is an organism which is unable to regulate its own internal temperature, therefore, it's internal environment is dependent upon its external environment (e.g. lizards). Whereas a regulator is ...

A mutualistic symbiotic relationship is a relationship between 2 different species where both species benefit. For example, the relationship between a plant and its pollinators is a mutualistic symbiotic ...