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
Paul [167]
2 years ago
8

How many valence electrons do elements in the same family as Aluminum contain?

Chemistry
1 answer:
Nady [450]2 years ago
5 0

Aluminium family has 3 electrons in their valence shell....i hope its correct..。◕‿◕。

You might be interested in
Please help it's due tomorrow.​
TEA [102]

Answer:

it's to blurry you can't see anything

6 0
3 years ago
X-rays had a frequency of about 3x10^18 determine it's wavelength (in nm) and energy per photon
Serggg [28]

Answer:

E = 19.89×10⁻¹⁶ J

λ = 1×10⁻¹ nm

Explanation:

Given data:

Frequency of xray = 3×10¹⁸ Hz

Wavelength of xray = ?

Energy of xray = ?

Solution:

speed of wave = wavelength × frequency

speed = 3×10⁸ m/s

3×10⁸ m/s  = λ ×3×10¹⁸ s⁻¹

λ = 3×10⁸ m/s  / 3×10¹⁸ s⁻¹

λ = 1×10⁻¹⁰m

m to nm:

λ = 1×10⁻¹⁰m×10⁹

λ = 1×10⁻¹ nm

Energy of x-ray:

E = h.f

h = plancks constant = 6.63×10⁻³⁴ Js

by putting values,

E = 6.63×10⁻³⁴ Js ×3×10¹⁸ s⁻ ¹

E = 19.89×10⁻¹⁶ J

7 0
2 years ago
Need help on this really bad!
timofeeve [1]

Answer:

Help your self

Explanation:

7 0
2 years ago
Nojzjxjsjs dsndjdjdjneksjsns
4vir4ik [10]
Meeeeeeeeeeeeeeeeeeeee 2
4 0
3 years ago
When considering free energy change, biochemists usually define a standard state, the biochemical standard state, which is modif
kodGreya [7K]

Answer:

The conditions for biochemical, chemical and both standard states are shown below

Explanation:

Chemical standard state:

Temperature is 25°

Intial concntration of reactants and products is 1M

g. Presurre is 1 atm.

PH7

Biochemical standard state:

Temperature is 25°

PH7

Constant value of Mg2+

Both:

Intial concntration of reactants and products is 1M

g. Presurre is 1 atm.

Temperature is 25°

PH7

7 0
3 years ago
Other questions:
  • What is the frequency of a wave traveling at 5,000 m/s with a wavelength of .002 m/cycle?
    10·1 answer
  • What is the mass of 9 atom(s) of copper in grams?
    5·1 answer
  • Visible light represents a very small portion of the electromagnetic spectrum. Radiation to the left in the image, such as micro
    12·2 answers
  • How many electrons are transferred during the formation of one molecule of al2o3?
    8·1 answer
  • Which examples would be found in Earth's biosphere? Check all that apply.
    12·1 answer
  • An electron has a charge identical to that of
    7·1 answer
  • What do atoms form when they bond chemically?
    11·1 answer
  • What determines whether something is a solid, liquid or a gas?​
    15·1 answer
  • A cart accelerating slower when mass was increased.<br> 1st Law - 3rd Law
    14·1 answer
  • How many liters of nitrogen dioxide are in 16 g of NO2 at STP?
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!