Author Question: What is the ionization energy of singly-ionized helium, which has 2 protons? A) 54.4 eV B) 27.2 ... (Read 72 times)

APUS57 · **on:** Jul 29, 2018

What is the ionization energy of singly-ionized helium, which has 2 protons?

A) 54.4 eV B) 27.2 eV C) 13.6 eV D) 6.80 eV E) 36.4 eV

Question 2

In a mass spectrometer, a single-charged particle has a speed of 1.00 106 m/s and enters a uniform magnetic field of 0.200 T at a right angle to the field. The radius of the resulting circular orbit is 20.75 cm.

What is the mass of the particle? (e = 1.60 10-19 C)
A) 6.64 10-27 kg B) 3.20 10-27 kg C) 1.67 10-27 kg D) 9.11 10-31 kg