random
Are two atoms of the same element identical
No. Two atoms of the same chemical element are typically not identical.
Which atom is the largest
Cesium
CO2
CO2
What eventually happens to a gas if its pressure is increased?
Can water stay liquid below zero degrees Celsius?
Yes, water can stay liquid below zero degrees Celsius
Which of the following values will decrease as you move left to right in a period of the periodic table
Atomic radius
Which element has the same number of valence electrons as tellurium
Sulfur
Water
H2O
In which state of matter are the particles furthest apart?
Can you light diamond on fire?
Yes, diamonds can be burned. The most common form of burning in everyday life is carbon combustion. In carbon combustion, carbon atoms break their bonds with each other and with other atoms (which requires energy) to form bonds with oxygen atoms
Elements that have similar properties will have the same __________ on the periodic table
group
Which element has the same energy level as potassium?
Selenium
O2
Which two states of matter are involved in sublimation?
How do I know if something is an acid so I can avoid eating it?
You eat acids all the time without knowing it and it's usually perfectly healthy. The danger is eating strong acids in high concentrations.
Elements from which group in the periodic table will have the lowest first ionization energies
How many valence electrons does the element oxygen have?
six valence electrons
glucose
Why can a gas be compressed
How do plants get their nitrogen from the air
Plants do not get their nitrogen directly from the air. Although nitrogen is the most abundant element in the air
Which element has the smallest atomic radius
helium
Across a period from left to right, what kind of trend does electronegativity follow?
It increases
Nitrogen
N2
Why can a liquid flow?