Which group in each pair is assigned the higher priority in R, S nomenclature?
`-CH_(2)NH_(2),-NHCH_(3)`

Explanation

To determine which group in the pair `-CH₂NH₂` and `-NHCH₃` is assigned the higher priority in R, S nomenclature, we will follow the Cahn-Ingold-Prelog (CIP) priority rules. Here’s a step-by-step solution:

### Step 1: Identify the groups
We have two groups to compare:
1. `-CH₂NH₂` (which can be viewed as `-C` bonded to `-H`, `-H`, and `-NH₂`)
2. `-NHCH₃` (which can be viewed as `-N` bonded to `-H` and `-CH₃`)

### Step 2: Determine the first atom in each group
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