atomic structure
Elements
Vocabulary
atoms
atoms continued
100
What is zero?
The total charge of an atom?
100
What is – ?the Periodic Table ?
The elements are ?displayed in this chart .
100
What is an atom ?
The smallest particle of an element.
100
What is – the nucleus ?
The center? of an atom .
100
What is an ion?
An atom that has a different number of electrons than protons.
200
What is the proton and neutron?
The two parts of the nucleus.
200
What is – ?the number of protons ?
The atomic number?gives us this information .
200
What is energy level?
Another name for an electron cloud.
200
What is – the proton ?
A positive particle? found in the nucleus .
200
What is an isotope?
An atom whose number of neutrons change due to decay.
300
What is the nucleus and the electron cloud?
The two parts of an atom.
300
What is 118?
The number?of known elements .
300
Who is Niels Bohr?
The scientist who created a model for an atom.
300
What is – an electron ?
The negative? particle that orbits? the atom .
300
What is it loses electrons?
What happens to the electrons in an ion with a positive charge?
400
What is a 8?
The number of electrons in the second electron cloud.
400
What is – the atom ?
The smallest unit?of an element .
400
What is a compound?
Two or more elements held together.
400
What is – the neutron ?
The neutral particle ?found in the nucleus .
400
What is it gains electrons?
What happens to an ion with a negative charge?
500
What is 18?
The number of electrons in the third electron cloud.
500
What is – O ?
The symbol for the? element oxygen ..
500
What is valence electron?
The electrons in the outermost electron cloud.
500
What is the Bohr's model?
The atom model which? shows orbiting electrons .
500
What is the mass number?
The sum of the number of protons and neutrons.
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