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
jek_recluse [69]
2 years ago
15

What is the electron configuration of the element in group 14 and period 4 of the periodic table

Chemistry
1 answer:
AlekseyPX2 years ago
7 0

Answer: The first three elements i.e., C, Si & Ge form mostly the covalent compounds.

...

SALIENT FEATURES OF GROUP 14 (CARBON FAMILY) ELEMENTS.

Period 4

Element Germanium

Symbol Ge

Atomic number (Z) 32

Electronic configuration [Ar] 3d10 4s2 4p2

Explanation:

You might be interested in
Equal masses (in grams) of hydrogen gas and oxygen gas are reacted to form water. Which substance is limiting?
Sonbull [250]

Answer:

a. Oxygen gas is limiting

Explanation:

hydrogen gas and oxygen gas are reacted to form water

2H₂ + O₂  →  2H₂O

the above balanced equation shows that 2 moles of H₂ is required for 1 mole of O₂

Given equal masses of H₂ and O₂

assuming 'x' gm for each, no. of moles of each gas  =

no. of moles of H₂ = x/2 = 0.5x moles

no.of moles of O₂ = x/32 = 0.031x moles

This shows that no. of moles of O₂ is very less so O₂ will become the limiting reagent.

3 0
3 years ago
Read 2 more answers
What is the amount of heat released when 25g of water cools 12.5 degrees C ?
Over [174]
Water can't cool at a single temperature. It must start at a higher temperature, and drop to a lower temperature in order to cool. Unless we know the other temperature, there is no way to calculate the amount of thermal energy released.
4 0
3 years ago
A scientist prepared an aqueous solution of a 0.45 M weak acid. The pH of the solution was 2.72. What is the percentage ionizati
aleksandr82 [10.1K]

Answer:

0.42%

Explanation:

<em>∵ pH = - log[H⁺].</em>

2.72 = - log[H⁺]

∴ [H⁺] = 1.905 x 10⁻³.

<em>∵ [H⁺] = √Ka.C</em>

∴ [H⁺]² = Ka.C

∴ ka = [H⁺]²/C = (1.905 x 10⁻³)²/(0.45) = 8.068 x 10⁻⁶.

<em>∵ Ka = α²C.</em>

Where, α is the degree of dissociation.

<em>∴ α = √(Ka/C) </em>= √(8.065 x 10⁻⁶/0.45) = <em>4.234 x 10⁻³.</em>

<em>∴ percentage ionization of the acid = α x 100</em> = (4.233 x 10⁻³)(100) = <em>0.4233% ≅ 0.42%.</em>

4 0
3 years ago
Read 2 more answers
The half life of oxygen is 2 minutes. What fraction of a sample of 0.15 will remain after 5 half lives?​
Natasha_Volkova [10]

Answer:

3.13%.

Explanation:

The following data were obtained from the question:

Original amount (N₀) = 0.15

Half life (t½) = 2 mins

Number of half-life (n) = 5

Fraction of sample remaining =.?

Next, we shall determine the amount remaining (N) after 5 half-life. This can be obtained as follow:

Amount remaining (N) = 1/2ⁿ × original amount (N₀)

NOTE: n is the number of half-life.

N = 1/2ⁿ × N₀

N = 1/2⁵ × 0.15

N = 1/32 × 0.15

N = 0.15/32

N = 4.69×10¯³

Therefore, 4.69×10¯³ is remaining after 5 half-life.

Finally, we shall the fraction of the sample remaining after 5 half-life as follow:

Original amount (N₀) = 0.15

Amount remaining (N) = 4.69×10¯³

Fraction remaining = N/N₀ × 100

Fraction remaining = 4.69×10¯³/0.15 × 100

Fraction remaining = 3.13%

3 0
3 years ago
Comets orbit in short, circular paths around the sun.<br><br> Is this true or false..? Thank you!
Luba_88 [7]
The answer to your question is true.
7 0
2 years ago
Read 2 more answers
Other questions:
  • Is it true or false that Science is a collection of facts that does not evolve. We have gained all the knowledge we can from sci
    8·1 answer
  • Which produces wave particles that move and displace one another? A) a radio B) a guitar C) a light bulb D) a microwave oven
    5·2 answers
  • How could an increase in industrial activity in developing nations contribute to global climate change?
    13·1 answer
  • Jailah needs a replacement for lithium for a science experiment. She tries silicon, but it does not work. Using what you know ab
    9·1 answer
  • What energy is required for a reaction to occur?
    11·2 answers
  • What type of reaction is : CaCo3+ HCl = CaCl2 + CO2 +H2O
    7·2 answers
  • What is equilibrium?? Give examples
    15·1 answer
  • What is the mass of 9.4 moles of B2(Cr207)3?
    13·1 answer
  • What element provides strength to the exoskeleton of Clams and oysters
    9·1 answer
  • Draw the product or products that are obtained from the reaction of HCl with 1-butene and with 2-butene. Show the relative stere
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!