0
Cecile Heidenreich ∙
The far right column.
an anthill
The correct answer is: That each element has a different number of protons....
Chris Ellis
That most of an atom's mass was packed in a central nucleus
An early theory describing properties of atoms
Transition metals.
She wants to use standard materials to minimize negtive environmental impacts
we can not add neutron
Elements are arranged in the order of increasing atomic number in the modern periodic table.
Boron has 3 valence electrons.
How have chemists used the periodic table over time
12
Green design