Question

elements in the same group have similar chemical and physical properties. false true elements cannot be broken down into simpler substances by ordinary chemical means, whereas compounds can. true false

Explanation:

Elements in the same group of the periodic table have the same number of valence electrons, leading to similar chemical and physical properties. Elements are pure substances and cannot be broken down into simpler substances by ordinary chemical means, while compounds are made up of two or more elements and can be decomposed.

Answer:

1. B. True
2. A. True