Atoms/Periodic Table
The inner part of the atom that contains the proton and neutron is called the _____.
Nucleus
Which element has the greater atomic radius; Sodium or Lithium?
The 3 states of matter are...
Solid, Liquid, and Gas
A substance that contains only one type of particle
What is an element?
Protons and Neutrons are about the same size. True or False?
TRUE!
Which element is more Electronegative; Ne or Mg?
What is Mg?
Has a definite volume and shape
Mixtures are separated through these kind of changes
What are physical changes?
Atoms of different elements have different numbers of these.
What are protons?
Describe the trend of Atomic Radius down a group and across a period.
Atomic Radius increases down a group and decreases across a period
In what state do molecules move extremely quickly and by bouncing off each other?
The only way to break down a compound is through this kind of change
What is a chemical change?
What is the electron configuration for Argon [Ar]?
1s2 2s2 2p6 3s2 3p6
Arrange the following elements in order of increasing ionization energy; beryllium, magnesium, and strontium.
Strontium, Magnesium, and Beryllium
Anything that has mass and takes up space is known as ___.
What is matter?
Which is NOT a physical or chemical change? Crushing, Weighing, Melting, Passing electric current
What is weighing?
What value represents the number of protons in the nucleus?
What is mass number?
Describe the periodic trends of Ionization Energy down a group and across a period.
Ionization Energy decreases down a group and increases along a period
Draw the particle arrangements for a solid, liquid, and gas.
Solid: packed together
Liquid: spread out a bit
Gas: SUPER spread out
Compounds CAN or CANNOT be broken down into simpler substances
What is can?