Atom and Periodic Table Basics

The particles that are found in the nucleus of an atom are

• neutrons and electrons

• electrons only

• protons and neutrons

• protons and electrons

Beryllium has how many protons?

• 4

• 9.0122

• 2

• 13.0122

Tags

NGSS.MS-PS1-1

Which of the following element in period 3 would be classified as a metal?

• Boron (B)

• Sodium (Na)

• Argon (Ar)

• Silicon (Si)

What do we call the horizontal rows on the periodic table?

• Periods

• Groups

Answer explanation

The horizontal rows on the periodic table are called periods. Each period represents a different energy level of electrons in the atoms of the elements in that row.

Label the parts of the periodic table​

a

b

c

Metals

Metalloids

Nonmetals

What do we call the vertical columns on the periodic table?

• Periods

• Groups

Answer explanation

The horizontal rows on the periodic table are called periods. Each period represents a different energy level of electrons in the atoms of the elements in that row.

What is the NAME of the element in period 3, group 13?

• Aluminum

• 13

• Gallium

• Al

Answer explanation

The element in period 3, group 13 is Aluminum, which has the atomic number 13. Therefore, the correct answer is 13, as it refers to the atomic number of Aluminum.

Tags

NGSS.MS-PS1-1

Match the correct parts of the periods table

• Yellow (Right)

• Periods

• Rows 1-7

• Groups

• Columns 1-18

• Metals

• Red (middle)

• Metalloids

• Blue (left)

• Nonmetals

Which subatomic particle has a negative charge?

• Proton

• Neutron

• Electron

• Quark

What element is this?

• Helium

• Hydrogen

• Argon

• Silver

Tags

NGSS.MS-PS1-1