TRUE OR FALSE QUESTIONS 18) The physical properties of metals include
dullness, malleability, ductility, and conductivity.
19) Neutrons have a negative charge.
20) Mendeleev was known as the father of the
periodic table.

18: FALSE The physical properties of metals include shininess, malleability, ductility, and conductivity.

19: FALSE Neutrons are the particles in an atom that have a neutral charge. They aren't positive like protons. They aren't negative like electrons.

20: TRUE Dmitri Ivanovich Mendeleev was a Russian chemist and inventor. He is best remembered for formulating the Periodic Law and creating a farsighted version of the periodic table of elements. He is also known as the "father of the periodic table"

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