Use the periodic table to answer the questions below.
Which diagram shows the correct electron
configuration for nitrogen (N)?
• N IS
1s 2s 2p
©
A N III
1s
2s
2p
☆ ☆ LIE
25
2V
DONE

What semimetal can form four single covalent bonds.

Look at the spectrums of a star moving towards earth and a motionless star. which of these is a correct inference that can be draw from the observation of the two spectrums? (2 points) the spectrum of a motionless star is difficult to be viewed separately using oridinary telescopes. the spectrum of a motionless star is identical to the spectrum of a star which moves towards earth. the spectrum of a star shifts towards the red region when the star moves towards earth. the spectrum of a star shifts towards the blue region when the star moves towards earth.

Which description best characterizes the motion of particles in a solid?