Author Question: How many oxide ions (O2-) are needed to balance the positive charge of a titanium ion (Ti4+)? A) ... (Read 271 times)

eruditmonkey@yahoo.com · **on:** Aug 27, 2018

How many oxide ions (O2-) are needed to balance the positive charge of a titanium ion (Ti4+)?

A) 1
B) 2
C) 3
D) 4
E) 6

Question 2

Which of the following statements is false?

A) The atomic spectrum of helium is different from the atomic spectrum of neon.
B) Electromagnetic radiation often behaves like a wave.
C) An atomic spectrum is an element's fingerprint.
D) An atom emits electromagnetic radiation when an electron moves from a lower energy level to a higher energy level.
E) Light that is high in energy has a high frequency.