What is the correct noble gas configuration for sr?

Sr has an atomic number of 38 so we'll start there.

The closest noble gas is Kr with an atomic number of 36 so it'll look like this:

[Kr]5s^2.

answer: e.   sour taste

explanation: acids are those substances which dissociates in water to give ions. as they dissociate to give ions, they act as electrolytes and thus are electrically conductive. acids are sour in taste. example: hcl

bases are those substances which dissociates in water to give ions or accepts ions. as they dissociate to give ions, they act as electrolytes and thus are electrically conductive. bases are bitter in taste. bases are slippery in nature.