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Periodic Table
Periodic Trends
Element Identification
Element Identification 2
Groups and periods
100
What number tells you the number of protons and electrons?
Atomic Number
100
What is the 'brain' of the atom?
Nucleus
100

What is the name of element with atomic number 1?

Hydrogen

100
What element has the symbol Xe?
Xenon
100

What are the horizontal rows called?

Periods

200
How do you figure out the number of neutrons?
Subtract the atomic number from the atomic mass
200
What particle has a positive charge?
Proton
200
What element has an atomic mass of 238.
U, Uranium
200
What element has 17 electrons?
Chlorine
200

What are the vertical columns called?

Groups

300
How do you find an element's atomic mass?
Add the number of neutrons and the number of protons together
300
What particle has no charge?
Neutron
300
What is the name of the element with the elemental symbol Zr?
Zirconium
300
What element's symbol is K?
Potassium
300

Which period contains magnesium (Mg)?

3

400
How many liquids are on the periodic table?
2
400
What particle has a negative charge?
Electron
400

Which element has 42 as its atomic number?

Mo, Molybdenum

400

What element has a atomic mass of 209?

Bismuth

400

What do elements in the same group generally have in common?

same number of electrons in their outer shell (valence electrons).

500
What does the term 'valence electrons' mean? (2 things)
number of electrons on outermost shell, tells how reactive an element is
500
What subatomic particle is not inside the nucleus?
Electrons
500
What element has the elemental symbol Yb?
Ytterbium
500

What is the symbol for oxygen?

O

500

An element is in Period 3 and Group 17. Identify it.

Chlorine (Cl)