Answer:
They both have Four electron shells
Explanation:
- The periodic table arranges elements into columns called groups and rows called periods.
- Elements in the same group share similar chemical and physical properties.
- For example, elements in group 1 called alkali metals have similar properties. They include sodium, lithium, and potassium among others.
- On the other hand elements in the same period have the same number of energy levels or electron shells. For example, elements in period 4 have four energy levels.
Answer:
The answer is: double covalent bond that has 4 shared electrons
Explanation:
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Answer:
Democritus thought that atoms were the smallest particle and could not be divided any more. The word 'atomos' which atom is derived from, means indivisible. we now know that atoms are made of sub-atomic particles, which are made of quarks (what sort of name is that), and these quarks are made of leptons and gluons.