question 14 (1 point)\nlisten\nwhich of the following pairs has approximately the same mass?\n1) a proton…

question 14 (1 point)\nlisten\nwhich of the following pairs has approximately the same mass?\n1) a proton and an electron\n2) a neutron and an electron\n3) a ¹h atom and an electron\n4) a ¹h atom and a neutron\n5) a 1h atom and a 2h atom

question 14 (1 point)\nlisten\nwhich of the following pairs has approximately the same mass?\n1) a proton and an electron\n2) a neutron and an electron\n3) a ¹h atom and an electron\n4) a ¹h atom and a neutron\n5) a 1h atom and a 2h atom

Answer

Answer:

  1. A $^1$H atom and a neutron

Explanation:

Step1: Recall particle masses

The mass of a proton is approximately $1.6726\times 10^{- 27}$ kg, an electron is about $9.1094\times 10^{-31}$ kg, a neutron is around $1.6749\times 10^{-27}$ kg. A $^1$H atom consists of 1 proton and 1 electron. Since the mass of the electron is negligible compared to the proton, the mass of a $^1$H atom is approximately the mass of a proton. And the mass of a proton is close to the mass of a neutron. So a $^1$H atom and a neutron have approximately the same mass.