This is the smallest part of an element.
What is an atom?
True or False: Neutrons and electrons have the same charge
What is false?
Subatomic particles on the outermost shell of an atom
What are valence electrons?
The sum of protons and neutrons in the nucleus of an atom.
What is mass number?
I contain 56 protons, 81 neutrons, and 56 electrons.
What is Barium?
True or False: Neutrons are located outside of the nucleus.
What is False?
The subatomic particle that has a neutral charge.
What is a neutron?
Groups indicate this
What are how many valence electrons?
The number of protons in an atom of a certain element.
What is atomic number?
I have 50 protons.
What is Tin (Sn)?
True or False: Electrons are located outside of the nucleus.
What is True?
Electrons have this kind of electrical charge.
What is negative?
Periods indicate this.
What are how many energy levels?
The elements on the periodic table are arranged by -----.
What is atomic number?
I have 3 valence electrons, 2 energy levels, 6 neutrons, and 5 protons.
What is boron?
True or False: Protons and neutrons are about the same size.
What is True?
Atoms of different elements have different numbers of these.
What are protons?
This element contains 3 valence electrons, 2 energy levels, is a metalloid, and is a shiny black solid.
What is Boron (B)?
Atomic number 1 = Electrons 1
What is Hydrogen?
Group 4A, period 2.
What is Carbon?
This is the smallest subatomic particle.
What is an electron?
An atom that has a certain number of electrons also has the same number of ______.
What are protons?
This element contains 2 valence electrons, 6 energy levels, is a soft metal, and is a silvery-white solid.
What is Barium (Ba)?
Mass number - atomic number = ______ __ ________.
What is the number of neutrons?
Group 11, Period 6.
What is Gold (Au)?