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Atoms and the periodic table Flashcards | StudBud
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Atoms and the periodic table
Atoms and the periodic table
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7th grade science
Flashcards
16 cards
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Questions
16
Answers
1
An atom consists of.....
Neutrons, protons and electrons
Protons, atomic number and mass number
Protons, Molecules, Electrons
Isotopes
2
The most abundant element in the universe is
Silver
Helium
Gold
Hydrogen
3
How many naturally occurring elements are found on the earth?
75
60
114
89
4
Isotopes are a "heavier" version of an element, and that means it has an extra ....
Neutron
Proton
Electron
Molecule
5
The innermost shell (K shell) can have a maximum ...
8 electrones
1 electron
3 electrones
2 electrones
6
protons have
Positive charge
Neutral
No charge
Negative charge
7
Various substances react with each other by ...
sharing protons
ignoring each other
sharing protons
Sharing or donating electrons
8
Element Fe is ...
Silver
Helium
Gold
Iron
9
What is the smallest unit of an element?
Particles
Atom
Electron
Molecules
10
Electrons found in the outer-most shell are called
Cracy electrons
Valence electrons
N shell elctrons
k shell electrons
11
The rings in the picture are called ...
periodic particles
electron super highways
electron shell
proton shells
12
Electrons have
Postive Charge
Neutral
Negative Charge
No charge
13
Neutrons have
Negative charge
special
no charge
Positive charge
14
The center of the atom is called
No name for it
Electron
center
Nucleus
15
When two different elements combine. They will form
Compounds
Isotopes
parties
elements
16
Element Md which is named after periodic table creator is called
Boron
Gold
Nitrogen
Mendelevium
