Periodic Table
What number tells you how many protons are in an atom?
Atomic number
Which subatomic particle has negative charge?
Electron
What is the name of element #1?
Hydrogen
Which element has the symbol S?
Sulphur
How many electrons fit on the first energy level?
2
What do you obtain if you substract the atomic number from the atomic mass?
Number of neutrons
Which subatomic particle is found in the nucleus?
Protons and neutrons
Which element is Ru
Ruthenium
Which element has the symbol Sb?
Antimony
How many electrons fit on the third energy level?
18
How do you find an element’s electrons?
By the atomic number
Which subatomic particle has positive charge?
Proton
Which element has the symbol Xe?
Xenon
Which element has the symbol Sc?
Scandium
How many valence electrons does iron has?
2
Which elements are liquid at room temperature?
Bromine & mercury
What is the smallest unit of matter?
The atom
Which element has 30 neutrons?
Iron / Manganese
Which element has 12 neutrons?
Sodium / magnesium
Figure out the number of electrons on each energy level for PHOSPHORUS
2, 8, 5
What do the vertical columns on the periodic table represent?
The groups / the number of valence electrons
How is the central part of an atom called?
The nucleus
Which element has 121 neutrons?
Mercury
Which element has 176 neutrons?
Oganesson
Figure out the number of electrons on each energy level for CALCIUM
2, 8, 8, 2