Electronegativity
What is electronegativity?
The ability of an atom to attract electrons towards itself
What is the definition of mole?
6.022 × 10²³.
What is the capital of Sweden?
Stockholm
What is molar mass?
The mass of one mole of a substance
Who is credited with creating the modern periodic table?
Dmitri Mendeleev.
Which element has the highest electronegativity?
Fluorine
How many moles are in a raindrop?
Billions
How many continents are there on Earth?
7
What is the molar mass of water (H₂O)?
18 g/mol.
What are the horizontal rows on the periodic table called?
Periods
Why do noble gases generally not have electronegativity values?
They have a full valence shell and do not typically form bonds.
What is the unit of measurement for a mole?
Moles per gram
What is the largest planet in our solar system?
Jupiter
Calculate the molar mass of CO₂.
44 g/mol.
Which group contains the alkali metals?
Group 1.
How does electronegativity change across a period in the periodic table?
It increases from left to right.
How many particles are in one mole of a substance?
6.022 × 10²³ particles.
Who wrote "Romeo and Juliet"?
William Shakespeare
How many grams are in 3 moles of NaCl?
175.32 g.
Name of the group in the periodic table that is considered less impressive than the other groups?
Poor metals
Explain how electronegativity differences determine the type of bond formed between two atoms.
A large difference leads to ionic bonds, a moderate difference results in polar covalent bonds, and a small or no difference forms nonpolar covalent bonds.
What does the word mole means in latin?
Large mass or a lot of something
What is the fastest land animal?
The cheetah.
Explain how to determine the molar mass of a compound with multiple elements.
Add the molar masses of all atoms in the compound according to their proportions.
Why do elements in the same group have similar properties?
They have the same number of valence electrons.