TOCIC abie Question 1 of 10
If an element forms a 2+ ion in which group of the periodic table would you
expect to find it
O A 17
B. 1
o
C. 18
OR.2

The discovery that the universe appears to be expanding led to a widely accepted theory called a.) the big bang theory b.) the doppler effect c.) hubble’s law d.) solar nebular theory e.) the seyfert theory

Modern physics a photon emitted from an excited hydrogen atom has an energy of 3.02 electron volts. which electron energy-level transition would produce this photon? a. n=1 to n=6 b. n=2 to n=6 c. n=6 to n=1 d. n=6 to n=2 i chose b but the correct answer is d can someone tell me why? and what's the difference?

Alfred pushes on a heavy box, but cannot move it. the box has a lot of inertia motion friction gravity