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
Juliette [100K]
2 years ago
14

How many groups are in the modern periodic table?

Physics
2 answers:
zzz [600]2 years ago
7 0

Answer:

There's 18 groups I'm pretty sure

nasty-shy [4]2 years ago
6 0

Answer:

18 groups are in the modern periodic table

You might be interested in
How does hydroelectric energy work
lions [1.4K]
<span>The water is held behind a dam, forming reservoir. The force of the water being released from the reservoir through the dam spins the blades of a giant turbine.</span>
6 0
3 years ago
An object is five focal lengths from a concave mirror.how do the object and image heights compare?
enot [183]

An object distance is presented as s = 5f and we know that the mirror equation relates the image distance to the object distance and the focal length.

The mirror equation is 1/f = 1/s + 1/s’ where the variable f stands for the focal length of the mirror. Variable (s) represents the distance between the mirror surface and the object and the variable <span>(s’) represents the distance between the mirror surface and the image. </span>

In addition, a concave mirror will have a positive focal length (f) and a convex mirror will have a negative focal length (f).

Now, we then have 1/f = 1/5f + 1/s’ which is s’ = 5f/4

Then we get the magnification ratio that expresses the size or amount of magnification or reduction of the object or image and to get the magnification, we use this equation: M= s’/s

M= 5f/4x5f

s’ = 1/4s

Therefore, the image height is one fourth of the object height

7 0
3 years ago
All of the following statements are true except (4 points) a. lunar phases result from the changing lunar mass b. the lunar phas
lara31 [8.8K]
A. lunar phases result from the changing lunar mass. Let me know if this helped.
7 0
3 years ago
Read 2 more answers
Explain the process of a nuclear fusion reaction using hydrogen. Include the particles that are used to start and maintain the c
Zielflug [23.3K]

Answer it might be this

Explanation:

8 0
3 years ago
How many molecules of Oxygen gas are there on the reactant side of this equation?
Sergeeva-Olga [200]

Answer:

4

Explanation:

It has 8 O atoms and 4 O2(g) molecules

8 0
2 years ago
Other questions:
  • Use at least two to three completed content related sentences to explain why physics is considered the basic science. Provide at
    5·2 answers
  • What does lowercase r mean
    13·1 answer
  • It takes the Earth 24 hours to make a complete rotation around its axis. 33% Part (a) What is the period of rotation of the Eart
    15·1 answer
  • If gold gets hot enough, it will melt. What type of change is this?
    11·1 answer
  • If an object is not accelerating, then one knows for sure that it is_____.​
    5·1 answer
  • A physicist drops astone off the top of cliff over looking a lake. She hears the splash 4 second after releasing the stone?
    9·1 answer
  • SOS HELP ME
    12·1 answer
  • A whale comes to the surface to breathe and then dives at an angle of 20.0 ∘ below the horizontal (see the figure (Figure 1)). I
    8·1 answer
  • The law of inertia states that a moving object will:.
    7·1 answer
  • n Fig. 30.11, R = 15.0 Ω and the battery emf is 6.30 V. With switch S2 open, switch S1 is closed. After several minutes, S1 is o
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!