Atomic Structure & Periodic Table Practice

1. A(n) _____________________ is a positively charged particle in an atom's nucleus.

• electron
• neutron
• plasma
• proton

Tags

NGSS.MS-PS1-1

2. What particles are in the nucleus of the atom? Check all that apply.

• electron
• neutron
• plasma
• proton

Tags

NGSS.MS-PS1-1

3. Is the following sentence true or false? Atoms are the smallest particles of matter.

• True
• False

4. What is the atomic number of an element?

• the number of protons in the element
• the number of neutrons in the element
• the number of protons plus neutrons in the element
• the number of elements and neutrons in the element

6. A chart of the elements showing the patterns of their properties is called a _____________________.

7. The periodic table is arranged according to

• mass number
• element number
• atomic number
• alphabetical order

8. Each horizontal row (across) in the periodic table is called a(n) ____________________.

• group
• element
• electron
• period

9. Choose the term that refers to elements in a column (vertical row; up & down) of the periodic table.

• period
• element
• group
• symbol

10. Choose the letter of the statement that is true about the elements in each group.

• They all have the same atomic mass.
• They all have similar characteristics.
• They all have similar atomic numbers.
• They all have the same chemical symbol.

11. A one- or two- letter representation of an element is called a(n) __________________.

• chemical symbol
• element name
• atomic number
• mass number