Atomic Basics
This is the smallest unit of an element that still keeps its properties.
What is an atom?
This particle has a negative charge and moves outside the nucleus.
What is an electron?
Horizontal rows on the periodic table are called this.
What are periods?
An atom has electron configuration 2, 8, 1. What group is it in?
What is Group 1?
These elements are shiny and conduct electricity.
What are metals?
A substance made of only one kind of atom is called this.
What is an element?
An atom has a mass number of 40 and 18 protons. Find neutrons.
What is 22?
Vertical columns are called this.
What are groups?
How many electrons can the first energy level hold?
What is 2?
These elements are found on the right side of the table.
What are nonmetals?
This value equals the total number of protons and neutrons
What is mass number?
This particle adds mass but has no charge.
What is a neutron?
Elements in the same column share this property.
What are valence electrons?
An atom with a full outer shell is considered this.
What is stable?
This group is very reactive and has 1 valence electron.
👉 What are alkali metals?
Two atoms have the same atomic number but different masses. What explains this difference?
What are isotopes (different number of neutrons)?
If an atom gains electrons, it becomes this type of particle.
What is a negative ion (anion)?
The periodic table is arranged by increasing this.
What is atomic number?
How many electrons can the 7th energy level hold?
what is 64?
This group has 7 valence electrons and is very reactive.
What are halogens?
If an atom becomes positively charged, what must have happened?
What is it lost electrons?
An ion has a -1 charge and 9 protons. How many electrons does it have?
What is 10?
Moving from left to right, atoms generally become this.
What is smaller?
Which element would have 8 valence electrons?
What is a noble gas?
BONUS
An atom has:
17 protons
18 electrons
18 neutrons
What type of particle is it and why?
What is a negative ion (anion) because it has more electrons than protons?