Answer:
K or Potassium
Step-by-step explanation:
go to the periodic table
period 1 is the vertical column that has the elements
H, Li, Na, K, Rb, Cs, Fr
period 1 has alkali metals
alkali metals are all soft, shiny and metallic when cut. They react easily with water, have low melting points and densities, and are good conductors of electricity
uqeduau