Parts of the Atom
Atoms & Scientist
Energy Levels
Table Structure
Various
100
Atom
What is the smallest part of an element that can be identified as that element?
100
Electrons
What is not found in the nucleus of the atom?
100
Gains and loses energy
An electron can change energy levels only if it?
100
Is malleable
What is a material that can easily be hammered into different shapes?
100
Atomic number
What is atoms of the same element have the same?
200
Proton
What is a positively charged particle
200
Nucleus
What is the center, or core of the atom?
200
8 electrons
What is amount the second energy level of an atom can hold?
200
Oxygen
What is the one element that is not an example of a noble gas? Neon; Argon: Oxygen: or Radon
200
Hydrogen
What is the element with the smallest atomic number? Helium; Carbon; Nitrogen; or Hydrogen
300
Isotopes
What is atoms of the same element that have different atomic masses?
300
Democritus
Who was the first person to suggest the existence of atoms?
300
Electron
What is the energy levels of an atom contained of?
300
Brittle
What is one property of nonmetals? Shiny; Brittle; Malleable: or Ductile
300
Protons and Neutrons
What is to calculate the atomic mas of an element, you must know the mass of its?
400
Electrons
What does the energy levels of an atom contain?
400
Dmitri Mendeleev
Who was the scientist who constructed the first periodic table of the elements?
400
13 eletrons
If am atom contains 13 protons, then it has how many electrons?
400
Compounds
What do atoms that can join together form?
400
Atomic masses
What is different atoms of the same element may have different?
500
Electrons, protons, and neutrons.
What are atoms made up of?
500
Dalton
Who was the inventor of the modern atomic theory?
500
Electrons equals the number of protons
What is the number of electrons if an atom is neutral?
500
Increasing atomic number
In the periodic table, elements are arranged in order of?
500
Chemical Symbol
What is the shortened way of writing the name of an element?
M
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