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3 years ago

Given the following electronic configurations, identify how many valence electrons each atom has.

Chemistry

1 answer:

Varvara68 [4.7K]3 years ago

7 0

Answer:

sodium=atomic number 11 it electronic configuration is ,K=2, L=8,M=1 Valence is 1

oxygen= atomic number 8 it electronic configuration is K=2, L=6 Valence is 2

iron= atomic number 26 it electronic configuration is K= 2 L= 8,M=8 N=6 Valence 2

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Group 1 elements have an average electronegativity of 0.84 (not including hydrogen). Group 17 elements have an average electrone

Ksenya-84 [330]

The elements of group 1 makes ionic bond with the elements of group 7 due to high difference of electronegativity values.

<h3>Type of bond between group 1 and 7</h3>

The elements of first group lose its one outermost electrons while on the other hand, the elements of seven group needs one electron so they gain that one electron so they make an ionic bond with each other.

So we can conclude that the elements of group 1 makes ionic bond with the elements of group 7 because of the high difference of electronegativity values.

Learn more about electronegativity here: brainly.com/question/2415812

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2 years ago

WILL MARK AS BRAINLIEST

saveliy_v [14]

Answer: Heat

Explanation:

when there is enough air in the balloon that is when the crew would blast the burner into the envelope mouth building the pressure until the balloon inflates until it starts to lift off the ground and as the air builds up the balloon will lift right off the ground

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3 years ago

(a) Red light has a wavelength of roughly 700 nm. What is the wavelength in m? ball park 10.10' (b) What is the wavelength of re

joja [24]

Explanation:

a) Wavelength of red light = 700 nm

1 nanometer = $10^{-9} meter$

Wavelength of red light in meter will be:

$=700 nm=700\times 10^{-9} m=7.00\times 10^{-7} m$

b) Wavelength of red light = $7.00\times 10^{-7} m$

1 meter = 39.3701 inches

Wavelength of red light in inches will be:

$7.00\times 10^{-7} m=7.00\times 10^{-7}\times 39.3701 inches$

$=2.7559\times 10^{-5} inches$

Value of distance given = 90.123 km

1 km = 3280.84 feet

$90.123 km=90.123 \times 3280.84 feet=295,679.1433 feet$

1 foot = 0.1515152 chain

$295,679.1433 feet=295,679.1433\times 0.1515152 chain$

$=44,799.88453 feet\approx 4.48\times 10^4 chains$

Value of distance in chains:

$90.123 km=4.48\times 10^4 chains$

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3 years ago

Which phrase describes convection?

Ann [662]

Answer: transfer of heat by the actual movement of warmed matter

Explanation: convection is the process of heat transfer through fluids. When molecules absorbs heat they become excited and less dense causing it to rise.

7 0

3 years ago

Read 2 more answers

Suppose that you add 26.7 g of an unknown molecular compound to 0.250 kg of benzene, which has a K f of 5.12 oC/m. With the adde

nadya68 [22]

Answer: The molar mass of the unknown compound is 200 g/mol

Explanation:

Depression in freezing point is given by:

$\Delta T_f=i\times K_f\times m$