D. argon (Ar), a noble gas
Explanation:
- Argon is the element on the third period with the highest first ionization energy.
- Ionization energy is a measure of the readiness of an atom to lose an electron.
- Weakly held electrons in the valence shell are easier to lose compared to the inner shell electrons.
- Across a period, ionization energy increases and since Argon is a noble gas on the periodic table, it has the highest first ionization energy.
- The energy required to remove electron from a filled orbital or inert-gas configuration is very great.
Learn more:
Noble gases brainly.com/question/1781595
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Answer:
The boat should point in angle to the perpendicular to the shore is, Ф = 12° 22'
Explanation:
Given data,
The velocity of the boat, V = 8.2 m/s
The velocity of the flow of the river, V' = 1.8 m/s
Let Ф formed by the boat perpendicular to the shore,
The two velocity components along the perpendicular axes are V and V'
Therefore,
tan Ф = V' / V
= 1.8 / 8.2
= 0.2195
Therefore,
Ф = tan⁻¹ (0.2195)
= 12° 22'
Hence, the boat should point in angle to the perpendicular to the shore is, Ф = 12° 22'
You use energy when you turn on a light in your home, or even when you're driving in a car. You can change how you use energy by riding your bike or skateboard to school, or leaving the light off during the day and opening the blinds. I hope this helps. c:
Probably the median. Mean is the average temp, Mode tells you the most likely temp, and range will give a max high and max low for the area.
light travels fastest through a vacuum which means "empty space, void"
