atoms
What is the smallest unit of an element that retains the properties of that element?
Atom
What is a pure substance made of only one type of atom?
Element
What does the atomic number tell you?
the number of protons
Which particle has a positive charge?
protons
I have 1 proton. Who am I?
hydrogen
What are the three main subatomic particles?
Protons, neutrons, and electrons
What element has the symbol O?
Oxygen
Are periods rows or columns?
rows
Which particle has no charge?
neutron
I have 6 protons. Who am I?
carbon
What part of the atom contains protons and neutrons?
Nucleus
What element has the symbol C?
carbon
Are groups rows or columns?
columns
Which particle is found outside the nucleus?
electron
I have 8 protons and 8 electrons. Who am I?
oxygen
Which subatomic particle has a negative charge?
Electron
What element has 11 protons?
sodium
What is the atomic number of oxygen?
8
A neutral atom has 8 protons. How many electrons does it have?
8 electrons
I have 17 protons, 18 neutrons, and 17 electrons. What element am I?
chlorine
What makes one element different from another element?
The number of protons
An element has 17 protons. What element is it?
chlorine
An element is in Period 3 and has 11 protons. What element is it?
sodium
An atom has 12 protons and 12 electrons. What is its overall charge?
neutral
I have an atomic number of 11 and an atomic mass of approximately 23. How many protons, neutrons, and electrons does a neutral atom have?
11 protons
12 neutrons
11 electrons