sipstick7427 sipstick7427 09-01-2024 Chemistry contestada What is the minimum energy that proton must possess in order to produce photoelectric effect with platinum metal? The threshold frequency for platinum is 1.3×10¹⁵s⁻¹A. 8.6×10¹² ergB. 8.6×10¹⁴ ergC. 3.6×10¹² ergD. 6.6×10¹² erg