1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Alik [6]
3 years ago
12

Mendeleev noticed that if he organized the elements by atomic weight certain patterns emerged. For instance, elements in the sam

e group (family) appeared to have the same
A) valence.
B) melting point.
C) isotopic ratio.
D) number of neutrons.
Physics
2 answers:
Inga [223]3 years ago
6 0
I've had a similar question on an assignment myself, so I'm going to assume it had the same idea.

When you organize them in such a way, the pattern that emerges tells you elements organized by atomic weight have the same number of valence electrons.

Hope this helps!
lys-0071 [83]3 years ago
5 0

Answer:

Is option A

Explanation:

The correct answer is valence. Our current periodic table puts these elements in the same column on the periodic table. We now know they have the same number of valence electrons.

You might be interested in
How does the Law of Conservation of Energy explain why ice cubes melt in water?
scoray [572]

Answer:

because it is an ice that is why it melt

6 0
3 years ago
Glucose can have a straight chain of ______________ atoms or, more commonly, form a _____________ structure.
vovikov84 [41]
Lipids and <span>Polysaccharides r the answers hoped i helped</span>
6 0
3 years ago
Structures on a bird feather act like a diffraction grating having 8000 8000 lines per centimeter. What is the angle of the firs
sammy [17]

Answer:

Angle of first order maximum, \theta=21.19^{\circ}

Explanation:

Given that,

Wavelength of the light, \lambda=452\ nm=452\times 10^{-9}\ m

Number of lines, N = 8000 per cm

The relation between the number of lines and the slit width is given by :

d=\dfrac{1}{N}

d=\dfrac{1}{8000/cm}  

d=0.000125\ cm=1.25\times 10^{-6}\ m

The equation of grating is given by :

d\ sin\theta=n\lambda

n = 1

sin\theta=\dfrac{\lambda}{d}

sin\theta=\dfrac{452\times 10^{-9}}{1.25\times 10^{-6}}

\theta=21.19^{\circ}

So, the angle of the first-order maximum is 21.19 degrees. Hence, this is the required solution.

6 0
3 years ago
Light is an example of something that travels in waves. Light waves come in many different varieties, and can be seen as many di
Anuta_ua [19.1K]

Answer:

Option (B)

Explanation:

Light is a form of electro-magnetic waves. This light wave has distinct range of wavelength that allows it to form different colors of light. This means that the color of the light produces depending on the amount of wavelength it comprises.

The visible light ranges from Violet to Red, and this is observed as different colors when each of these electromagnetic waves strikes our eyes at a certain angle. The violet light has the shortest wavelength of about 410 nm, where the red light has the highest wavelength of about 650 nm.

Thus, the correct answer is option (B).

6 0
3 years ago
Read 2 more answers
Real life example for each gas law
Dvinal [7]
Applications of Gas Law in Real Life. A torch used to heat up the and rise the air temperature inside the balloon. This cause the air volume inside the balloon to increased and becoming less dense than the surrounding air. ... The air in the ears will change its volume then causes yours ears to pop due to the strain.
3 0
3 years ago
Other questions:
  • How many hydrogen atoms are in a water molecule?
    10·1 answer
  • When sweat evaporates from your skin the temp of your skin decreases this is because
    7·1 answer
  • Why is gravitational forces equal for everyone?
    12·1 answer
  • 1. The maximum running speed (S) in km/hr and the corresponding body mass (m) in kg were
    6·1 answer
  • An object moving at a constant velocity will always have a
    10·2 answers
  • Drag each tile to the correct box.
    10·1 answer
  • List at least types of motion​
    9·2 answers
  • A liquid has a volume of 100 cm and a mass of 85g.
    11·1 answer
  • 30pts!!!06.01 Simple Harmonic Motion Lab: Virtual Lab Simulation
    12·2 answers
  • Why do birds not get shock when they<br>sit on high power live wire but we do?<br>​
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!