Atoms
This sub-atomic particle has a positive charge.
a proton
What are valence electrons?
Electrons that are on the outermost layer of an atom.
What's an anion?
negative ion.
Why is the atomic radius of Helium smaller than Hydrogen?
More proton pulling power
What two directions on the periodic table show an increase in atomic mass
Down and right
This sub-atomic particle has a negative charge.
An electron
How many valence electrons does a Sodium (Na) atom have?
1 ve
What's a cation?
positive ion
Why is the atomic radius of Hydrogen smaller than Lithium?
Lithium has an extra electron shell
What two directions on the periodic table show an increase in atomic radius
Down and left
Both protons and neutrons can be found in here.
The nucleus
How many valence electrons does a Magnesium (Mg) have?
2 ve
Is Na+ a cation or anion?
cation
Why is Lithium less reactive than Potassium?
Lithium as a higher electron affinity
What two directions on the periodic table show an increase in reactivity of metals
Down and left
The place where electrons are found.
What are energy levels/electron orbitals?
How many valence electrons does a Fluorine (F) have?
7 ve
Is Br- a cation or anion?
anion
Why is Iodine less reactive that Fluorine?
Fluorine has less electron affinity
What two directions on the periodic table show an increase in Non-metals reactivity
What are the 3 subatomic particles that make up an atom?
protons, neutrons, and electrons
How many valence electrons do all atoms want to have?
8 ve
If an atom LOSES an electron, will it become positive or negative?
positive (cation)
Why is Neon less reactive than Fluorine?
Neon is a noble gas
What two directions on the periodic table show an increase in electron affinity (the attraction between electrons and nucleus)
Up and right