Mendeleev and the periodic table

What does the atomic mass tell you?

• Basically,the number of electrons and protons

• The number of neutrons

• Basically, the number of protons and neutrons

• The number of protons.

Tags

NGSS.MS-PS1-1

In Mendeleev's periodic table elements are arranged as-

• increased atomic mass

• increased atomic number

• mass number

• size

a column in a periodic table is called

• block

• group

• row

• element

Elements in same group has

• same size

• same physical and chemical properties

• same atomic number

• all of these

A row in a periodic table is called

• group

• block

• period

• element

In modern periodic table elements are arranged as per

• increased atomic mass

• increased atomic number

• increased size

• all of these

The atomic number tells you what?

• number of electrons
• number of protons
• number of neutrons
• both electrons and protons in an atom.

What does the 1.00794 stand for?

• Hydrogen
• atomic number
• atomic mass
• atomic explosion

Tags

NGSS.MS-PS1-1

What is the chemical symbol for Lithium?

• H
• He
• Li
• N

A nucleus of an atom contains what two parts?

• Electrons and Protons

• Neutrons and Electrons

• Protons and Neutrons

Tags

NGSS.MS-PS1-1