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
Vadim26 [7]
3 years ago
9

How many valence electrons are in each atom?

Chemistry
1 answer:
Zarrin [17]3 years ago
7 0
Group 1 atoms only have one. Group 2 has 2 valence electrons, and so on.
You might be interested in
Carbon-12 contains 6 protons and 6 neutrons. The radius of the nucleus is approximately 2.7 fm (femtometers) and the radius of t
Slav-nsk [51]

Explanation:

Let us assume that volumes is equal to spheres  volume of nucleus.

fm = femto meter = 10^{-15}

pm = pico meter = 10^{-12}

Hence, calculate the volume as follows.

          V = \frac{4}{3} \times \pi \times r^{3}

              = \frac{4}{3} \times 3.14 \times (2.7)^{3}

              = 82.4481 fm^{3} (cubic femtometers)

or,          = 82 fm^{3}

Now, we will calculate the volume of the atom as follows.

          V = \frac{4}{3} \times \pi \times r^{3}

             = \frac{4}{3} \times 3.14 \times (70)^{3}

             = 1436758.4 pm^{3} (cubic picometers)

thus, we can conclude that volume of the nucleus is 82 fm^{3}  and volume of the atom is 1436758.4 pm^{3}.

7 0
3 years ago
If body fats has a density of 0.94 g/mL and 3.0 liters of fat are removed, how many pounds of fat were removed from the patient?
-Dominant- [34]

Answer:

6.217 pounds

Explanation:

We are given;

  • Density of body fats 0.94 g/mL
  • Volume of fats removed = 3.0 L

We are required to determine the mass of fats removed in pounds.

We need to know that;

Density = Mass ÷ volume

1 L = 1000 mL, thus, volume is 3000 mL

Rearranging the formula;

Mass = Density × Volume

         = 0.94 g/mL × 3000 mL

         = 2,820 g

but, 1 pound = 453.592 g

Therefore;

Mass = 2,820 g ÷ 453.592 g per pound

         = 6.217 pounds

Thus, the amount of fats removed is 6.217 pounds

4 0
3 years ago
an_____is a trait that a organism inherits that makes it more suited to it's natural envormemt, helping it survive
Iteru [2.4K]

adaptation may be i guess

4 0
2 years ago
Which type of changes are melting, freezing, and boiling?​
tatiyna

Answer:

Adding heat.

Decreasing and increasing temperatures.

Explanation:

4 0
2 years ago
Read 2 more answers
How many moles are in 564 grams of Copper
nexus9112 [7]
63.55 is how many miles are in 564 grams of copper
4 0
3 years ago
Other questions:
  • A little boy is playing with a plastic water bottle. He blows air into the bottle to make a whistling sound. Then, he wedges a p
    8·1 answer
  • List 10 examples of substances that are beneficial in small quantities but poisonous in large doses
    10·2 answers
  • Iodine-131 has a half-life of 8.10 days. In how many days will 50 grams of Iodine-131 decay to one-eighth of its original amount
    12·2 answers
  • Name 3 ways ecologist can estimte the size of population
    6·1 answer
  • How is Oxygen -18 different from oxygen -16?
    6·1 answer
  • Question 7
    11·1 answer
  • Which of these examples is a water-conservation technique that also reduces water pollution
    11·2 answers
  • In terms of electrons, what is the difference between a covalent and ionic bond
    15·1 answer
  • Which statement correctly defines dynamic equilibrium?
    7·2 answers
  • Balance Na + SO3 = Na2SO3
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!