An atom consists of a nucleus surrounded by electrons
2 of 10
What is the symbol for sodium?
Na
3 of 10
What are the groups in the Periodic table?
A column of similar elements.
4 of 10
How many protons, neutrons and electrons are there in a 27Al13 atom?
13 protons, 14 neutrons and 13 electrons
5 of 10
What does the nucleus contain?
The nucleus contains protons and neutrons
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What is the charge of protons and electons?
Protons are positively charged and electrons are negatively charged
7 of 10
What is the atomic number of an atom?
The atomic number of an atom is the number of protons it contains
8 of 10
Which of the following statements is true of an atom?
The number of protons is always equal to the number of neutrons. The number of protons is always equal to the number of electrons. C) The number of neutrons is always equal to the number of electrons.
9 of 10
Which electronic structure is correct for an element with 17 electrons?
2,8,7
10 of 10
Other cards in this set
Card 2
Front
What does an atom consists of?
Back
An atom consists of a nucleus surrounded by electrons
Card 3
Front
What is the symbol for sodium?
Back
Card 4
Front
What are the groups in the Periodic table?
Back
Card 5
Front
How many protons, neutrons and electrons are there in a 27Al13 atom?
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