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
iren [92.7K]
3 years ago
6

3. Why do elements in a group have similar properties?

Physics
1 answer:
lana [24]3 years ago
5 0

Answer:

Elements belonging to the same periodic group reflects similar chemical properties because of the same number of valence electrons residing in their outermost orbits that reflect the same energy level.

Explanation:

<u>Elements of a periodic group reflecting similar properties</u>

We often observe that a specific group of elements reflect common characteristics towards other elements. This is because these elements have their valence electrons in the same energy levels.

This is the prime factor according to which elements are kept in a specific group in the periodic table. All elements in the group have the same number of valence electrons. These elements may have different number of electrons over all. Elements belonging to the same group shows the same chemical properties such as bonding with other elements, reacting to other substances etc.

You might be interested in
A book has a mass of 50 grams and an acceleration of 5 m/s/s. What is the force on the book?
Ivan

Answer:

250 newtons i belive.

Explanation:

8 0
3 years ago
Describe the extent of the swing !
gizmo_the_mogwai [7]

Answer:Definition of swing it. informal. : to do or manage something successfully If he can swing it, he'll visit next

3 0
3 years ago
One mole of an ideal gas does 2100 J of work as it expands isothermally to a final pressure 1.00 x 10^5Pa and volume of 0.025m^3
elena-s [515]

Answer:

(A) 0.004 m^3

(B) 48.11 K

Explanation:

Work, W = 2100 J

Pressure, P = 1 x 10^5 Pa

V2 = 0.025 m^3

(A) let the initial volume of the gas is V1.

W = P (V2 - V1)

2100 = 1 x 10^5 (0.025 - V1)

0021 = 0.025 - V1

V1 = 0.025 - 0.021

V1 = 0.004 m^3

Thus, the initial volume of the gas is 0.004 m^3.

(B) Let the temperature of the gas is T

Use ideal gas equation

P1 x V1 = n x R T

1 x 10^5 x 0.004 = 1 x 8.314 x T

T = 48.11 K

Thus, the initial temperature of the gas is 48.11 K.

4 0
3 years ago
A machine gun fires 60 bullets per minute, with a velocity of 700 m/s .If each bullet has a mass of 50 g .Find the power develop
MAXImum [283]

Answer:

2100 kg*m/s

Explanation:

The proper term for power in this case is to use the physics term "impuls" = p.

1. Find the "power" developed by the gun to fire just 1 bullet.

2. multiply by 60 to find the power produced by the gun per minute.

p = m * v

where

m = mass of the bullet = 50 g = 0.050 kg

v = velocity of the bullet = 700 m/s

p = 0.050 * 700

p = 35 kg*m/s

So the impuls for 1 bullet is 35 kg*m/s

The gun can fire 60 bullets per minute so it's fireing power must there fore be 60 * 35 = 2100 kg*m/s

4 0
3 years ago
A 5-kg object slides down a frictionless surface inclined at an angle of 30º from the horizontal. The total distance moved by th
erma4kov [3.2K]

Answer:

Workdone =0

Explanation:

The body is inclined at θ=30°,     s=10m,  m=5kg

Workdone by the object = FsCosθ

but the surface is a friction-less surface, this means coefficient of friction =0

F=μR

F=0*R

F=0

W=FScosθ

W=0*SCosθ

W=0

7 0
4 years ago
Other questions:
  • Which of the following is best described as an inclined plane twisted into a spiral?
    8·1 answer
  • What does the index of refraction directly measure? the angle between the incident ray and the normal line the angle between the
    10·2 answers
  • A square coil with a side length of 16.0 cm and 29 turns is positioned in a region with a horizontally directed, spatially unifo
    5·1 answer
  • If an insulated (power side) wire rubbed through a part of the insulation and the wire conductor touched the steel body of a veh
    11·1 answer
  • Solve for the dog's displacement during segments A and B (0-20s)?
    7·2 answers
  • 1. A 20m steel wire is stretched to 20.0m by
    12·1 answer
  • How do you calculate voltage
    9·1 answer
  • An unstable particle at rest spontaneously breaks into two fragments of unequal mass. The mass of the first fragment is 3.00 10-
    15·1 answer
  • A total charge of 9.0 mC passes through a cross-sectional area of a nichrome wire in 3.6s. The number of electrons passing throu
    9·1 answer
  • Find the components of vtot along the x and y axes in Figure 3.25, where = 23.0° and vtot = 7.56 m/s.
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!