Atoms
What is the charge of a proton?
Positive (+)
The modern periodic table is organized by increasing ________.
Atomic number
Matter is anything that has ________ and takes up ________.
Mass and space (volume)
Ice cubes in a tray are an example of this state of matter.
Solid
What is the chemical symbol for Carbon?
C
What is the charge of a neutron?
No charge (neutral)
Which property means a metal can be pulled into a wire?
Ductile
Solids cannot flow and cannot be _________.
Compressed
Water in a glass is an example of this state of matter.
Liquid
Which metal is commonly used in jewelry?
Gold
Where are electrons located in an atom?
Outside the nucleus
Oxygen, chlorine, and helium are examples of what type of element?
Nonmetals
Liquids have a definite ________ but no definite ________.
Volume; shape
Steam rising from hot coffee is an example of this state of matter.
Gas
Which nonmetal is used to purify water?
Chlorine
In an atom, the number of protons is equal to the number of ________.
Electrons
Elements that have properties of both metals and nonmetals are called ________.
Metalloids
Gases can flow, have lots of energy, and can be _________.
Compressed
Lightning is an example of this state of matter.
Plasma
What is the atomic number of Oxygen?
8
An atom of nitrogen has an atomic number of 7 and a mass number of 14. How many neutrons does it have?
7
Which metalloid is used in semiconductors and glass?
Silicon
Plasma is made of atoms that have lost their ________.
Electrons
Toothpaste is often classified as this state of matter.
Liquid
Silver (Ag) has an atomic number of 47. How many protons does it have?
47