Which of these pairs of elements have the same number of valence electrons? answer quick

hydrogen (h) and helium (he)

sodium (na) and potassium (k)

carbon (c) and oxygen (o)

boron (b) and beryllium (be)

The speed was not exceeded so it was slow

There is no graph to look at on here, but i shall explain them to you. a line graph is just in its title it’s a graph with a line running through the dots to show an increase or decrease. a bar graph is used to show how much or how little something is so a comparison. a scatter plot is used to graph points to tell the data. and i don’t know what a histogram is.