Question

Identify two metalloids that have the same number of electrons shells krypton

B and Si
Ge and As
Sb and Te
B and At

Answer 1

Answer;

Ge and As.

Step-by-step explanation;

Elements Ge and As belong in the same period as krypton.

Each row of the periodic table is called the period.

Elements in each period have the same number of electron shells.

These elements in the same period do not have similar properties- the properties change greatly across every period. Krypton is in period four therefore all the elements in period 4 have four electrons shells.