Periodic trends, EMS & electrons, flame test

How many protons does this isotope of titanium have?

• 48
• 22
• 26
• 70

Tags

NGSS.HS-PS1-8

A wave with a large wavelength will have...

• Low Frequency & Low Energy

• High Frequency & High Energy

• High Frequency & Low Energy

• Low Frequency & High Energy

Tags

NGSS.HS-PS4-1

Which has the LONGEST wavelength and therefore the lowest frequency/energy? These waves are used in broadcasting, wifi, and texting.

• Gamma rays

• Visible light

• Radio waves

• Infrared rays

Tags

NGSS.HS-PS4-1

Which section of the electromagnetic spectrum is the ONLY part humans can see?

• X-Rays

• Gamma Rays

• Visible Light

• Ultraviolet Rays

Select the correct order of waves on the EMS from the longest wavelength to the shortest wavelength

• Radio, Micro, Infra, Visible, Ultra, X-ray, Gamma
• Gamma, X-ray, Ultra, Vis, Infra, Micro, Radio
• Vis, Micro, Infra, Ultra, X-ray, Gamma, Radio
• Micro, Radio, Vis, Infra, Ultra, X-ray, Gamma

Tags

NGSS.HS-PS4-1

The higher the frequency the ______ the energy. 

• higher
• lower

Tags

NGSS.HS-PS4-1

NGSS.HS-PS4-3

Put the visible light colors in order from longest wavelength to shortest wavelength

• Violet, Indigo, Blue, Green, Orange, Yellow, Red
• Red, Yellow, Green, Orange, Violet, Blue, Indigo
• Red, Orange, Yellow, Green, Blue, Indigo, Violet
• Yellow, Blue, Orange, Violet, Red

Tags

NGSS.HS-PS4-1

Absorption of energy by an electron results in 

• it moving from the ground to an excited state
• it moving from an excited to the ground state
• the emission of a photon
• it moving from an excited to the ground state and the emission of a photon

Tags

NGSS.HS-PS1-2

An atom becomes _______ charged when it loses electrons.

• Positively

• Negatively

• Neutrally

Tags

NGSS.MS-PS1-1

Cations are ___ charged ions...

• Positive

• Negative

• Neutral