Science

Draw a bohr-rutherford model of a sodium-23 atom, How many valence electrons does a sodium atom have?

What charge does a proton have?

Positive

Negative

What are always the same?

Protons and neutrons

Electrons and protons

what is an isotope?

Different atoms of the same element, with different neutrons

what is an isotope?

Different atoms of the same element, with different neutrons

Why are the atomic masses on the periodic table decimals and not whole numbers?

Because the atomic mass on the p t is a weighed average of the different isotopes of that element

Why are the atomic masses on the periodic table decimals and not whole numbers?

Because the atomic mass on the p t is a weighed average of the different isotopes of that element

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