Flashcards
Untitled
Cards in this deck (8)
- 1—
- 2An atom consists of?An atom consists of a nucleus surrounded by electrons.
- 3What is the correct chemical symbol for sodium?Na
- 4What are the groups in the periodic table?A column of similar elements
- 5How many protons, neutrons and electrons are there in a 27Al13 atom?13 protons, 14 neutrons and 13 electrons.
- 6Which of the following does the nucleus contain?The nucleus contains protons and neutrons.
- 7What is the atomic number of an atom?The atomic number of an atom is the number of protons it contains.
- 8Which electronic structure is correct for an element with 17 electrons?The electronic structure for an element with 17 electrons is 2,8,7
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- Flashcards on Untitled, created by Corina Ward on 30/04/2014.
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- Corina Ward
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