Vertebrata
Vertebrata is a group that contains various organisms which possess vertebrae (backbones). Animals that belong to the group are called vertebrates, and they include mammals, birds, fish, amphibians, and reptiles. The backbones in the animals extends from the head to the tail, and it encloses and protects the main nerve cord. The body of vertebrates is divided into trunk, and tail regions. They also possess a unique tube shaped brain, a distinct head, and three pairs of sense organs.
An atom of chlorine has several valence electrons in its
Hmm cuts or maybe actually i am not quite sure myself. :l
lol
Answer:
Protons
Explanation:
Every element has a unique number of protons and thats what the atomic number is on an element and how they're labeled in a periodic table