Question

what are the first 20 semi metals in the periodic table

Answer 1

Explanation:

Semimetals or metalloids are chemical elements that have properties of both metals and nonmetals. Metalloids are important semiconductors, often used in computers and other electronic devices.

Boron (B): Atomic number 5

Silicon (Si): Atomic number 14

Germanium (Ge): Atomic number 32

Arsenic (As): Atomic number 33

Antimony (Sb): Atomic number 51

Tellurium (Te): Atomic number 52

Polonium (Po): Atomic number 84

Tennessine (Ts): Atomic number 117

Answer 2

Endoplasmic reticulum (ER), in biology, a continuous membrane system that forms a series of flattened sacs within the cytoplasm of eukaryotic cells and serves multiple functions, being important particularly in the synthesis, folding, modification, and transport of proteins . All eukaryotic cells contain an endoplasmic reticulum (ER). In animal cells, the ER usually constitutes more than half of the membranous content of the cell. Differences in certain physical and functional characteristics distinguish the two types of ER, known as rough ER and smooth ER.

mark me as brainliest