Below is an instruction that describes a task. Write a response that appropriately completes the request.

### Instruction:
What is the highest Z (p) when arsenic is the element, and the N (n) is more than 42

### Inputs:
table_name: table, columns: ['Element', 'Nuclide', 'Z ( p )', 'N ( n )', 'isotopic mass ( u )']

### Response:
SELECT MAX Z ( p ) FROM table WHERE Element = arsenic AND N ( n ) > 42