CH 11 Moder Atomic Theory 11.1 WOC Zumdahl

The bright colors of fireworks are caused by the presence of

• anions like oxide

• atoms that are radioactive

• elements in group IA

• cations of metals like sodium and strontium

I chapter 3 we learned about Rutherford's model of the atom. Which of these is an example of his findings about the atom using the Gold Foil Experiment?

• the atom has a positively charged center

• the atom is mostly empty space

• the atom has a dense core

• all of the above

Difference in chemical properties between groups will be shown to be related to the way that electrons are

• formed in a nuclear reaction

• shaped

• arranged around the nucleus

• charged

Although Rutherford knew the electrons were moving around the nucleus of the atom he could not explain why the electrons

• did not go crashing into the positively charged nucleus

• did not follow specific orbits like planets

• followed each other in a specific pattern

• seemed to disappear and reappear

All electromagnetic waves have

• wavelength, speed, and frequency

• the same energy

• the same frequency and wavelength

• the same speed and energy

All of these are examples of electromagnetic radiation except

• visible light

• X-rays

• radio waves

• sound waves

ROYGBV represents the characteristic

• arrangements of electrons in light

• photons of light in a vacuum

• the order of the component colors of visible light

• the initials of the discoverers of electromagnetic radiation

Light is said to have two "natures". They are

• particle and emotion

• color and sound

• wavelength and frequency

• particle and wave

The energy bundle or packet of light is called a

• particle incident

• photon

• calorie

• joule

Experiments done with vegetables and the color of mulch have shown that the color of light reflected by mulch

• accelerates plant death

• encourages plant growth depending on the color

• encourages plants to attack one another

• has no effect at all