The symbols from the list and match them with the names of the 3
Choose
elements
Be s KC B Ar 0 Ne ci Ca H
Symbol of element
Name of element
calcium
carbon
oxygen
beryllium
hydrogen
potassium
neon
chlorine

Be - Beryllium
S - sulfur
K - Potassium
C - Carbon
B - Boron
Ar - Argon
O - oxygen
Ne - Neon
Ca - Calcium
H - Hydrogen

The  grandmother cell  is a hypothetical  neuronthat represents a complex but specific concept or object.[1]  it activates when a person "sees, hears, or otherwise sensibly discriminates"[2]  a specific entity, such as his or her grandmother. the term was in use at least as early as 1966 amongst staff and students in the department of experimental psychology, university of cambridge, england. a similar concept, that of the  gnostic neuron, was proposed two years later

Maybe you should get some from your teacher and learn more so you can get your grades up and maybe study a bit more