Atoms
Name That Atom
Periodic Table
Components of Atoms
Reactions
100
The atomic number of an element is the amount of...?
Protons
100
This atom has 8 Protons inside its nucleus.
Oxygen
100
Elements that have luster, are malleable, are ductile, and are good conductors are called what?
Metals
100
The three components of an atom are?
Protons, Neutrons, and Electrons
100
If you have a piece of paper and rip it in half, what kind of change took place?
Physical change
200
What is the equation to find the atomic mass of an atom?
Protons + Neutrons = Atomic Mass
200
This element has 17 electrons.
Chlorine
200
Elements that are not ductile, not malleable, do not have luster, and are not good conductors are called what?
Nonmetals
200
Which of the following lists the two particles found together inside the nucleus of an atom?
Protons and Neutrons
200
If you were to light a piece of paper on fire, what kind of change would take place?
Chemical Change
300
A neutral atom has an equal number of positive and negative charges. If a neutral fluorine atom has 9 protons and 10 neutrons, how many electrons will it have?
9 electrons. The amount of electrons is equal to the amount of protons.
300
What element is this?
Sodium
300
Elements that vary in how much luster they have, how ductile they are, how malleable they are, and in how conductive they are are called what? (HINT: they make a stair step on the periodic table)
Metalloids
300
What is the name for the type of subatomic particle that is electrically neutral and found in the nucleus of an atom?
Neutron
300
Evidence of a chemical reaction includes anything that shows -
a new substance has been formed.
400
A neutral atom has an equal number of positive and negative charges. If a neutral fluorine atom has 9 protons and 10 neutrons, how many electrons will it have?
6 electrons. Since the protons are positive and there are six of them, to make the atom neutral and have a net charge of 0 you would want to have 6 negatively charged electrons.
400
What metal can be found on period 2 and group 2 of the periodic table?
Beryllium
400
What do you call the rows on the periodic table?
Periods
THINK like this: The PERIOD-ic table has many rows.
400
How many valence electrons are in the element Fluorine?
7 valence electrons
400
A chemical reaction is represented in the equation provided.
3H2 + 3Cl2 → ? HCl
What number needs to go in front of the HCl to balance the equation?
6
500
What is the mass of an atom with seven protons, seven neutrons, and eight electrons?
14
500
This noble gas has 10 neutrons and 2 energy levels.
Neon
500
What do you call the columns of the periodic table?
(Columns go up and down)
Groups
500
What component of an atom is on the electron cloud?
Electron
500
You decide to mix two colorless chemicals together into one tube. The contents of the tube turn purple, bubbles appeared briefly, and the tube felt warm. What signs of a chemical change took place?
- Color Change
- Temperature Change
- Gas Produced