What are atoms?
The atomic theory stated that atoms cannot be created, destroyed, or divided.
What is the atomic theory?
This subatomic particle has a positive charge and is found in the nucleus.
What is a proton?
The number of protons in an atom.
What is atomic number?
the same number of protons but different numbers of neutrons
What is Isotopes?
The rows on the periodic table are called this.
What are periods?
Its use in clothes, fabrics, ropes, and many other things has made it a popular material.
What is the use of nylon?
This is the number of protons in the nucleus and determines what element an atom is.
What is the atomic number?
This is a molecule made from different types of atoms.
What is a compound?
The total number of protons and neutrons in an atom’s nucleus.
What is mass number?
The columns on the periodic table are called this.
What are groups?
Plants create this through photosynthesis.
What are carbohydrate molecules?
This subatomic particle has almost no mass and orbits around the nucleus.
What is an electron?
A molecule that contains only one type of atom is referred to as this.
What is an element?
The element has 8 protons and 8 neutrons.
What is oxygen?
Elements in the same group have this in common.
What is the same number of outer electrons?
An adult human being has about 10 thousand million million, million million atoms in their body.
About how many atoms are there in an adult human body?
The total number of protons and neutrons in an atom is called this.
What is the mass number?
Elements are often defined as metals or non-metals, but some elements like silicon are called this because they have properties in between.
What are metalloids?
The method used to calculate average atomic mass using isotope percentages.
What is relative atomic mass?
The center of an atom that contains protons and neutrons.
What is the nucleus?
Patterns in the structure of atoms can be used to organize elements into groups.
How was the periodic table created?
Atoms of the same element that have different numbers of neutrons are called these.
What are isotopes
This Russian chemist published the periodic table in 1869.
Who is Dmitri Mendeleev?
The number you subtract from mass number to find neutrons.
What is atomic number?
The number that determines an element’s position on the periodic table.
What is atomic number?