Compare the three subatomic particles in terms of location in the atom mass and relative charge
Answers
The protons are located inside the nucleus and have a positive charge.
The electrons are located outside the nucleus and have a negative charge.
The neutrons are located inside the nucleus and have no charge.
Explanation:
- Atom is defined as the smallest unit of a matter.
- Atom is made up of three subatomic particles: protons, electrons, and neutrons.
- Protons and neutrons are collectively known as nucleons.
- Protons are located inside the nucleus of an atom and are positively charged.
- Electrons are located outside the nucleus of an atom and are negatively charged.
- Neutrons are located inside the nucleus of an atom and have no charge.
- It is electrically neutral because they have the same number of protons and electrons.
Learn more about subatomic particles here:
Related Questions
A toy balloon filled with air has an internal pressure of 1.25 atm and avolume of 2.50 L. If I take the balloon to the bottom of the ocean wherethe pressure is 95 atmospheres, what will the new volume of the balloonbe? How many moles of gas does the balloon hold? (Assume T 285 K)
How might you estimate the minimum temperature
How many grams are in 2.4 moles of sulfur?
How many constitutional isomers of C4H9Br are possible? a) Five b) One c) Four d) Three e) Two
Answers
Cl₃ is formed by thecombination of 3 chlorine atoms. Hence, not a single element and not a compound. Instead Cl₃ is a molecule of chlorine.
What are molecules ?
Molecules are the combination of atoms of same element or are the basic units of a compound. A compound is formed by the combination of two or more atoms of different elements.
The combination of atoms can be different bond types, such as ionic bond, covalent bond, hydrogen bonding etc. The type of bond is dependent on the nature of atoms.
Combination of same atoms in any number are forming the molecules of that element and not a compound. Hence, Cl₃ is a molecules and not element or compound.
Find more on compounds:
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Answer:
CI3 is a compound called carbon tetra iodide
Answers
The answer is nucleic acids
b. Ionic solids have higher melting points than molecular solids.
c. Molecular solids have higher melting points than all other types of solids.
d. It is impossible for solids to melt; therefore solids do not have melting points.
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B. Ionic solids have higher melting points than molecular solids.
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The liters of sea water must evaporate to produce 5.00 moles of magnesium hydroxide - 78.8 litres.
A mole is a special unit of quantity of a chemical species that contains exactly Avogadro's number of particles.
- The mass of one mole of an element or a compound, called the molar mass, can be found from a periodic table.
- The unit of molar mass is g/mol.
=> the molar mass of Mg(OH)₂
Mg + 2O + 2H
= (24.31) + (2×16) + (2×1.01)
= 58.33 gmol⁻¹.
then,
=> the number of moles:
n = m/M
=
= 0.0634 mol
=> the amount of water in liters needed to evapourate to produce 5.00 moles:
=>
=> 0.0634x = 5×1
=>
=> x = 78.8 litres.
Thus, the liters of sea water must evaporate to produce 5.00 moles of magnesium hydroxide - 78.8 litres.
learn more:
First we find the molar mass of Mg(OH)₂
Mg + 2O + 2H = 24.31 + 2×16 + 2×1.01 = 58.33 gmol⁻¹.
Then find the number of moles: n = m/M = 3.7 / 58.33 = 0.0634 mol
So now we know that 0.0634 mol are produced per litre of sea water.
Let the amount of water in litres needed to evapourate to produce 5.00 moles be x.
We can express this as a ratio.
0.0634 mol / 1 l = 5 mol / x l.
Solve for x by cross-multiplication:
0.0634x = 5×1
x = 5/0.0634 = 78.8 litres. (rounded to three significant figures)
Hope this helps!
Answers
Answers
Answer:
B: Discovering the internal structure of the atom.
Explanation:
Dalton’s experiments with gases marked the beginning of the modern era of chemistry. The hypotheses about the nature of matter on which Dalton’s atomic theory is based can be
summarized as follows:
- Elements are composed of extremely small particles called atoms.
- All atoms of a given element are identical, having the same size, mass, and chemical properties. The atoms of one element are different from the atoms of all other elements.
- Compounds are composed of atoms of more than one element. In any compound, the ratio of the numbers of atoms of any two of the elements present is either an integer or a simple fraction.
- A chemical reaction involves only the separation, combination, or rearrangement of atoms; it does not result in their creation or destruction.
Dalton made no attempt to describe the structure or composition of atom —he had no idea what an atom is really like. But he did realize that the different properties shown by elements such as hydrogen and oxygen can be explained by assuming that hydrogen atoms are not the same as oxygen atoms.