The correct answer is option D, that is, protons and neutrons.
The center of an atom is known as the nucleus, it comprises nucleons, that is, neutrons and protons, and is enveloped by the cloud of electrons. The nucleus exhibits the majority of the mass of the atom in spite of being a very small constituent of the atom. Approximately all the atom's mass is formed of the neutrons and protons in the nucleus with a very small donation from the orbiting electrons.
2. Plasmas have a net negative charge.
3. The number of protons in an element is always equal to the number of neutrons.
4. Solids have a fixed mass, volume, and shape.
Answer: Solids have a fixed mass, volume, and shape.
Explanation: Solids are the substances which have fixed shape, fixed volume and mass due to its close packed structure.
Dalton explained that all the elements are made up of small indivisible particle known as Atoms but after some time this was proved wrong as atoms is not indivisble, it conatins sub atomic particle like electrons, protons, neutrons etc.
Plasmas are considered as the fourth state of matter which contains equal quantity of positive ions and negative electrons.
The number of protons are equal to the number of electrons. The sum of number of protons and neutrons make the atomic mass quantity.
Answer:
Factors that influence flow :
Flow patterns in a fluid (gas or liquid) depend on three factors: the characteristics of the fluid, the speed of flow, and the shape of the solid surface. Three characteristics of the fluid are of special importance: viscosity, density, and compressibility. Viscosity is the amount of internal friction or resistance to flow. Water, for instance, is less viscous than honey, which explains why water flows more easily than does honey.
All gases are compressible, whereas liquids are practically incompressible; that is, they cannot be squeezed into smaller volumes. Flow patterns in compressible fluids are more complicated and difficult to study than those in incompressible ones. Fortunately for automobile designers, at speeds less than about 220 miles (350 kilometers) per hour, air can be treated as incompressible for all practical purposes. Also, for incompressible fluids, the effects of temperature changes can be neglected.
What is the question here?
Answer:
1) The sediment is gradually buried and compacted.
2) The sediment is deposited by wind, flowing water, or other natural processes.
3) Dissolved minerals completely cement the sediment together.
Explanation:
Atoms with low ionization energy form positive ions or cations more easily than atoms with high ionization energy due to less energy being required to remove an electron from the atom's valence shell.
The ease at which an atom forms a positive ion, also known as a cation, depends on its ionization energy. Ionization energy is the minimum amount of energy required to remove an electron from an atom in its ground state.
An atom with a low ionization energy will form a cation more readily than an atom with a high ionization energy. This is because it takes less energy to remove an electron from the atom's valence shell. On the other hand, atoms with a high ionization energy hold their electrons more tightly, thus it requires more energy to form a cation. This is seen in the trend across the periodic table where ionization energy increases across a period and decreases down a group due to the size and energy of the orbitals.
Sometimes, successive ionization energies or the energy necessary to remove subsequent electrons from an atom increase because core electrons, which are closer to the nucleus and thus experience a strong electrostatic attraction, are harder to remove than valence electrons.
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A.5.3
B.4.7
C.8.7
D.9.3
The correct answer is C) 8.7
The pH of a solution indicates the acidity or basicity of the answer. A solution is said to be neutral if the pH is 7, if the pH fee is less than 7 then it is acidic in nature and if the pH cost is greater than 7 then the solution is simple in nature.
Ph may appear as it belongs at the periodic desk of factors, however, it's truly a unit of size. The abbreviation pH stands for ability hydrogen, and it tells us how an awful lot hydrogen is in drinks—and the way active the hydrogen ion is.
PH is a measure of the attention of H+(aq) ions in an answer. The attention of H+ ions may be stated in mol dm(-three), but the use of the log(10) feature simplifies the numbers concerned. Definition: pH is the terrible logarithm to base 10 of the hydrogen ion awareness in an aqueous solution.
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