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Q1 Chemistry
Atomic Structure/Chemical Bonding
Question | Answer |
---|---|
The smallest portion of an element that retains all of the properties of the element | Atom |
The two major parts of the atom | Nucleus and Electrons |
The charge of a proton is ___ ___ | Positive One |
The total positive charge on a nucleus is determined by the ___ ___ | Atomic Number |
The atomic number of Hydrogen is ___ | 1 |
The atomic number of Carbon is ___ | 6 |
The atomic number of Nitrogen is ___ | 8 |
The atomic number of Chlorine is ___ | 17 |
The atomic number of Sodium is ___ | 11 |
The charge of a neutron is ___ | Neutral |
The mass of a neutron is approximately the same as the number of ___ | Protons |
The positively charged central region of an atom is the ___ | Nucleus |
The charge of an electron is ___ ___ | Negative One |
Atoms of the same atomic number and different masses | Isotopes |
Electrons travel around the nucleus at certain distances in ___ ___ | Energy Levels |
How many electrons does the first energy level hold? | 2 |
How many electrons does the second energy level hold? | 8 |
How many electrons does the third energy level hold? | 18 |
How may electrons does the fourth energy level hold? | 32 |
Electrons in the outermost energy level are ___ ___ | Valence Electrons |
Elements react with other elements to achieve 8 valence electrons, or a ___ ___ ___ | Stable Electron Configuration |