Counting Protons, Neutrons, and Electrons
Parts of an Atom
Counting Atoms
Chemical Reactions and Bonds
Atomic Numbers
100

If neon has an atomic number of 10, how many protons does it have?

10

100
The inner part of an atom that contains the proton and the neutron is called the __________.
Nucleus
100

C6H12O6 has how many Hydrogens?

12

100

How many valence electrons do most atoms want to have?

8

100
Atomic numbers of an atom are the same as the number of what in an atom?
protons
200

If lithium has an atomic mass of 6.941 what is that rounded to the nearest whole number?

7

200
These particles have a positive charge and are found inside the nucleus.
proton
200

6CO2 What is the subscript in this chemical formula?

2

200

A chemical bond is when electrons are gained, lost, or _____________.

shared

200
Carbon's atomic number is _______.
6
300

What element does not have any neutrons?

Hydrogen

300
These particles are located within the nucleus, and have no charge.
Neutron
300

6CO2 How many molecules of CO2 are found in this chemical formula?

6

300

Ionic bonds occur between what types of elements?

metals and nonmetals

300
What element has a number of 56?
barium
400

If an atom has an atomic mass of 23 and atomic number of 11 what is the number of neutrons?

12

400
These particles are negatively charge and are found outside the nucleus.
electrons
400

6CO2 How many total atoms are found in this formula?

18

400

When covalent molecules are dissolved in water do they conduct electricity?

No

400
Why does hydrogen have an atomic number of 1?
because it only has one proton
500

What element on the periodic table has an approximate atomic mass of 197

Gold

500
Most of the mass of an atom is located here.
nucleus
500

10PO4  How many total atoms are found in this chemical formula?

50

500

What are the four steps of balancing a chemical equation?

1. Write the elements of the reactants and products.

2. Count the numbers of atoms of each.

3. Determine whether it is balanced or not balanced.

4. Add coefficients until it is balanced.

500

If an atom is charged it is called what?

ion

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