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Elements
Vocab
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Test Questions
Grab Bag
100
Chemical Symbol for Boron
What is B
100
The total mass of the protons and neutrons
What is atomic mass?
100
A repeating pattern is called ___________
What is periodic
100
All atoms of the same element have the same
What is atomic number
100
The energy levels of an atom contain this
What is electrons?
200
Chemical Symbol for Nitrogen
What is N?
200
The smallest part of an element
What is atom
200
__________ is the shininess of an object
What is luster
200
The modern atomic theory was proposed by
What is Bohr?
200
What element did Justin do for model?
What is Beryllium
300
Chemical Symbol for Magnesium
What is Mg?
300
These have a positive charge and are located in the nucleus
What is protons
300
______________ are brittle and do not conduct heat or electricity well.
What are nonmetals
300
Who was the first person to suggest the existence of atoms?
What is Democritus?
300
How fast do electrons move around the nucleus
What is near the speed of light
400
Chemical Symbol for Gold
What is Au?
400
Atoms of the same element that have different numbers of neutrons
What is isotopes?
400
The second energy level can hold _____________ electrons
What is 8
400
In the periodic table, elements are arranged in order of
What is increasing atomic number?
400
Tritium is an isotope of _________
What is hydrogen?
500
Chemical Symbol for Lead
What is Pb?
500
This is what the 5 elements in group 17 are called
What are halogens
500
__________________ first thought to organize elements into a periodic table.
What is Mendeleev?
500
Atoms join together to form
What is elements
500
Name 2 noble gases
What is neon, krypton, helium, argon, xenon, radon