11化学结课小测

Q1:姓名

Q2:Which mass is expressed to four significant digits?

Q3:Which of the following ions has the same number of electrons as Cl⁻?

Q4:Which of the following has the correct order of increasing atomic radius?

Q5:The first five ionization energies of an unknown element show a huge jump between the third and fourth ionization energies. Which of the following statements correctly identifies the element?[图片]

Q6:Which of the following chemical groups are least likely to react with other elements?

Q7:In solid methane, the forces between neighboring CH₄ molecules are best characterized as

Q8:The boiling points of the elements helium, neon, argon, krypton, and xenon increase in that order. Which of the following statements accounts for this increase?

Q9:Which of the following bonds is expected to have the greatest ionic character?

Q10:Both O²⁻ and F⁻ ions have the same number of electrons. Which statement best explains why F⁻ is smaller than O²⁻?

Q11:The first five ionization energies of a hypothetical element Q are shown below:IE1 = 738 kJ·mol⁻¹IE2 = 1450 kJ·mol⁻¹IE3 = 7730 kJ·mol⁻¹IE4 = 10550 kJ·mol⁻¹IE5 = 13600 kJ·mol⁻¹On the basis of these data, Q is most likely in which group of the periodic table?