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Yakvenalex [24]
4 years ago
14

Atoms of which two elements have a combined total of 23 protons?

Chemistry
1 answer:
Alik [6]4 years ago
6 0

Answer:

Sodium, Na, and magnesium, Mg

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What is the source of EXTERNAL energy for Earth's spheres and systems?
UkoKoshka [18]

The earth is a vast, complex system powered by two sources of energy: an internal source (the decay of radioactive elements in the geosphere, which generates geothermal heat) and an external source (the solar radiation received from the Sun); the vast majority of the energy in the earth system comes from the Sun.

3 0
3 years ago
Element z reacts with bromine to form an ionic compound zbr2
slamgirl [31]

Explanation:

<u>Physical properties of ZBr₂</u>

The compound is an ionic substance. Therefore it will have properties of ionic compounds. Some of these properties are:

  • it is a hard solid usually with high melting points or a liquid with high boiling points.
  • Soluble in water and insoluble in non-polar solvents.
  • It can conduct electricity in aqueous solutions or in molten form.
  • it will undergo a fast reaction.

<u>Z is a metal</u>

To form ionic compound, a metal will combine with a non-metal. Bromine is a non-metal and it is expected that Z will be a metal. This is because ionic bonds involves transfer of electron from one specie to the other. Metals are usually the donor and non-metals are the receptor. This is how ionic bond forms. The electrostatic attraction resulting from the ions produced the ionic bond.

<u>Formula of the oxide</u>

ZO

                 Z                           0

                +2                         -2

It is obvious that Z has 2 valence electrons. It will lose the two valence electrons to attain stability.

Oxygen requires 2 electrons to resemble Neon. This combination will give a compound ZO.

Learn more:

ionic compounds brainly.com/question/6071838

#learnwithBrainly

               

5 0
3 years ago
Haii i hope your doing great!<br> i need helpp:)
alina1380 [7]
Amplitude is 5m and wavelength is 100m

!let me know if I'm wrong bc im a little rusty!
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3 years ago
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Which organelle packages materials and distributes them throughout the cell?
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The golgi body i think
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3 years ago
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What atomic or hybrid orbitals make up the sigma bond between br and f in bromine trifluoride, brf3?
mina [271]
<span>Draw the Lewis structure. Bromine has 3 bonds and two lone pairs for a trigonal bipyramidal electron geometry and an sp^3d hybridization. Fluorine is peripheral it does not require hybridization, but we often consider it to be hybridized too - it has 1 bond and 3 lone pairs for sp^3 hybridization. So the sigma bonds come from an overlap of an sp^3d orbital on Br with an sp^3 orbital on F. If you don't consider the F to be hybridized the overlap would have to be to a p orbital on the F</span>
8 0
4 years ago
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