DP Chemistry (last assessment 2024)

Test builder »

Question 23M.1.HL.TZ1.10

Select a Test
Date May 2023 Marks available [Maximum mark: 1] Reference code 23M.1.HL.TZ1.10
Level HL Paper 1 Time zone TZ1
Command term Question number 10 Adapted from N/A
10.
[Maximum mark: 1]
23M.1.HL.TZ1.10

Why does the melting point of the elements decrease down group 1?

A.  Atomic mass increases

B.  Number of electrons increases

C.  Radius of metal ion increases

D.  First ionization energy decreases

[1]

Markscheme

C

Syllabus sections