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protons
atomic
electrons
arkrt
sr rekz
100
100
100
100
100
100
100
100
100
100
200
200
200
200
200
200
200
200
200
200
300
1000
300
300
a b
300
300
a b
300
300
a b
500
500
a b
500
500
a b
500
500
a b
500
500
a b
500
500
a b