Atoms are composed of these 3 particles?
What is protons, neutrons, and electrons?
Two hydrogen atoms and one oxygen molecule make up one molecule of this.
What is water?
What is number of protons in the nucleus of an atom?Daily Double
What is atomic number?
The number of protons in Hydrogen.
What is one?
The number of sodium atom in table salt. Hint: the symbol for table salt is NaC Daily Double
What is 1 sodium atom?
The chemical symbol for water.
What is H2O?
Center of the atom that contains protons and neutrons.
Daily Double
What is the nucleus?
Chart used by scientist to list all the elements.
Triple the points
What is the periodic table? 900 points
This takes up space and has mass.
What is matter?
Give the definition of an atom.
What is the smallest unit of matter?
The number of hydrogen atoms in a molecule of H2.
What is two?
What is the smallest unit of matter called?
What is an atom?
The small number in a chemical formula is called this.
What is subscript?
These orbit the nucleus of an atom creating a "cloud".
Daily Double
What is are electrons?
A proton has a ----------- charge.
What is positive?
This is made of letters and numbers.
Daily Double
What is a chemical formula? 800 points
The definition of a compound. Daily Double
What is two or more different atoms joined together?
These keep the protons of an atom from leaving the nucleus.
What are neutrons?