Question

(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.

Answer 1

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.

Hope this helps.