Alkali metals are listed in the first column of the periodic table. this tells you that a they are highly reactive

b they have only one electron in their outer orbital shells.

c their nuclei contain only one neutron

d both a and b

My question says on my assignment. read the following scenarios and decide which of the properties of life are being described. the first one is. katherine stopped on the way to school to grab some donuts. 2. because a dog cannot sweat, it has to pant in order to stay cool. 3. an elephant trun had no bone but 4,000 muscles. i have no idea what i am supposed to anwer. i can't find the answer in my notes or book that i can understand anyway

Diagram of the evolution of land plants?

What are the student's observations and inferences before he starts his investigation?