Answer:
Explanation:
by using litmus papaer it will turn into red if solutions is acidic
and into blue if it's basic
by using Magnesium ribbon. Magnesium do not react with bases so hydrogen gas will produce when Magnesium is dipped in an acidic solution
True
Explanation:
The mass of an electron is 9.11 x 10⁻³¹kg. It is the lightest subatomic particle compared the protons and neutrons.
Protons weighs 1.67 x 10⁻²⁷kg
Neutrons weighs 1.68 x 10⁻²⁷kg
- Electrons carry negative charges.
- They were first discovered by J.J Thomson where he called them cathode rays.
- They occupy the regions in space around the nucleus.
- The regions consists of orbitals and are called sublevels or subshells.
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Subatomic particles brainly.com/question/2757829
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Here N H 4 O H { NH }_{ 4 }OH NH4OH is not a strong electrolyte because it doesn't dissociates completely.
The quantum mechanical model is used to describe the energy and most likely location of an electron.
Answer: Option A
<u>Explanation:
</u>
The quantum mechanical model leads to the introduction of quantum numbers representing the energy levels, sub-shells, orbitals as well as spin states of the electrons. So according to the quantum numbers we can perfectly define the position and energy of any electron in an element.
According to Pauli’s principle, any two electron cannot be having same set of quantum numbers. So, using the principle quantum number, azimuthal quantum number, magnetic and spin quantum number, we can define the energy and location of an electron in the atom.
Because of us and other cells from plants and Animals
