Elements
Which element has 9 electrons?
F or Flourine
What is an atom?
The smallest particle of matter.
What should you never chew during a lab?
Gum
The outermost energy shell has space for how many electrons?
8
What is inside the nucleus of an atom?
Protons and neutrons
Which element is the only liquid metal?
Mercury
What is a valence electron?
Electrons in the outermost shell.
What is PPE
Personal Protective Equipment or lab coat, gloves and safety glasses
Columns or groups in the periodic table share what?
The same number of valence electrons.
How many electrons does each atom of Hydrogen have?
1
What type of element is Antimony?
A metalloid
What is a covalent bond?
What kind of shoes should you wear during a lab?
Close-toed shoes
Rows or periods in the periodic table share what?
The same number of energy shells.
What state of matter is not found on Earth except in rare cases?
plasma
How many neutrons does Gallium have?
70 (atomic weight) - 31 (#protons) = 39 neutrons
What is an ionic bond?
A bond that forms between positively charged and negatively charged atoms (if an atom has a charge, it is an ion).
What safety equipment do we have in the lab?
Eye wash station, shower, fire extinguisher
How many energy shells and valence electrons does Polonium have?
6
How many valence electrons are in an atom of Xenon?
8
What is the atomic number of Tungsten?
74
What are some characteristics of acids?
What are two things you should never do in this room?
Running or horse play
What is the element with 2 valence electrons and 7 electron shells?
Radium
If an atom gains an electron, what is it's overall charge?
It is now a negative ion.