Elements and Symbols
How many oxygen atoms are present in a molecule of carbon dioxide (CO2)?
1 oxygen and 2 Carbon
What state of matter has a definite shape and volume?
Solid
What is the charge of a proton?
Positive
What is the name of the column in the periodic table called?
Group
I am the lightest you will ever find,
In water I am combined
I'm first on the table then comes the rest of my squad!
Hydrogen
I am needed to breath, cook and fly
I may be invisible, but I have taken up the whole of space!
I fill up balloons, with no sound
here are your hints, who am I?
Gas
What is the center of an atom called?
Nucleus
Who created the first periodic table?
Dmitri Mendeleev
I help your bones stay strong everyday
In cheese and milk I make my way
I'm found in chalk and seashells
What element am I, heres your clue!
Calcium
When a substance reacts with oxygen and produces heat and light, its called:
Combustion
What is the process called when a gas turns into a liquid?
Condensation
Who is credited with discovering the electron?
J.J Thomson
What element is named after the Uranus?
Uranium
What is the term for the temperature at which a solid turns into a liquid?
Melting point
How many electrons are in a neutral atom of Carbon?
6
What element is in period 3 and group 17?
Chlorine
How many known elements are there?
118
Foundry where new elements are forged:
Stars
I'm not solid, liquid, or gas,
I shimmer and shine in the sky
You'll find me in stars, lightnings and more
I am the state of matter you adore
Who am I?
Plasma
We share a name, close to same
Out protons math, out neutrons differ
Different weight just one name
who are we?
Isotopes