Question
Describe the arrangement of subatomic particles in our current model of the atom. (2 marks) square
Answer
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Stuart
Professional · Tutor for 6 years
Answer
In our current model of the atom, the protons and neutrons are located in the dense nucleus at the center of the atom, while the electrons move around the nucleus in a cloud-like region, occupying different energy levels.
Explanation
## Step 1:The current model of an atom, often referred to as the quantum mechanical model, is based on the principles of quantum mechanics. This model describes the atom as a tiny, dense, positively charged core called a nucleus surrounded by a cloud-like region of moving electrons.## Step 2:In the nucleus of the atom, we have the protons and neutrons. Protons carry a positive charge, whereas neutrons are neutral, carrying no charge. The nucleus is extremely dense and accounts for almost all the mass of the atom.## Step 3:Surrounding the nucleus, we have the electrons. Electrons are negatively charged particles that move around the nucleus in a cloud-like region. The exact position of an electron at any given time cannot be precisely determined, which is a fundamental principle of quantum mechanics. The electrons occupy different energy levels, also known as shells or orbitals, around the nucleus.