Answer:
Alkali Metals
Explanation:
Most commonly, the color represents what type of element it is (noble gas, alkali metal). This is not always true as different tables follow different coloring schemes
Colored tables are important because they give you an extra dimension of information. A typical periodic table is colored according to element groups, which are elements that share chemical and physical properties. Some element groups are easily identified as columns on the periodic table, but as you move across the table, the trends aren't so clear-cut. The metalloids and nonmetals, for example, don't fall neatly into the same column. Color coding helps identify similar elements such as these at a glance.
Answer:
Weight required = 194.51 N
Explanation:
The elongation is given by
Length , L= 1.6 m
Diameter, d = 1.1 mm
Area
Change in length, ΔL = 2.8 mm = 0.0028 m
Young's modulus of copper, E = 117 GPa = 117 x 10⁹ Pa
Substituting,
Weight required = 194.51 N
When the student the sled jumps off toward the north , the sled most likely move towards the south.
<h3>What is the Newton third law?</h3>
According to the Newton third law of motion, action and reaction are equal and opposite. This means that the direction of the reaction force must also be opposite to that of the action.
As such, when the student the sled jumps off toward the north , the sled most likely move towards the south.
Learn more about Newton third law:brainly.com/question/974124
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Answer:
E= 3.497×10^(-19) J
Explanation:
The energy gap between ground and the excited state will be equal to energy of a photon of wavelength 537 nm
which can be calculated as
h= Planck's constant
λ= wavelength of photon
c= speed of light
E= 3.497×10^(-19) J
Answer:
32.11 g/mol
Explanation:
Given;
32S => 91.65%, 31.97g/mol
33S => 2.4%, 32.97g/mol
34S => 5.95%, 33.97g/mol
The molar mass of sulfur in the sample is the weighted average of the molar masses of its isotopes based on the percentage abundances.
i.e
molar mass = ( x 31.97) + ( x 32.97) + ( x 33.97)
molar mass = (0.9165 x 31.97) + (0.024 x 32.97) + (0.0595 x 33.97)
molar mass = (29.30) + (0.79) + (2.02)
molar mass = 32.11g/mol
Therefore the molar mass of sulfur in the sample is 32.11 g/mol