(20 POINTS) fill in the blank with the word or words that best completes the sentence. Word bank: protons - electrons - genes - neutrons - pH scale - periodic table - siblings - interphase.
A. The nucleus of an atom is made of ___________ and __________.
B. The _________ is used to indicate whether a solution is acidic or basic.
C. Traits passed down from parent to offspring are determined by __________.
D. The nucleus of an atom is surrounded by _________.
E. Label the 3 main parts of an atom. then describe their changes.
A) Protons and neutrons B) pH scale C) Genes D) Electrons E) The three main parts of an atom are protons, which have a positive charge, neutrons, which have no charge, and electrons, which have a negative charge.
