Atoms and Periodic Table of Elements

The mass number of an element is the amount of _________ it has.

• protons

• protons and neutrons

• electrons

• neutrons

Tags

NGSS.MS-PS1-1

Which of the following elements is an example of an element that conducts electricity?

• Aluminum

• Helium

• Boron

• Neon

Tags

NGSS.MS-PS2-3

Which particle does not have a charge?

• neutron

• proton

• electron

• megatron

Tags

NGSS.MS-PS1-1

Which particle has a positive charge?

• neutron

• electron

• proton

• megatron

Tags

NGSS.MS-PS1-1

An atom of zinc has 33 protons and 33 electrons. What is its atomic charge?

• +33

• -33

• +66

• 0-Neutral

Tags

NGSS.MS-PS1-1

The atomic number of Beryllium is ___ the number of protons in Beryllium is _____?

• 4 and 4

• 9.012182 and 4

• 4 and 9.012182

Tags

NGSS.MS-PS1-1

___________________ are positively charged particles located in the nucleus of an atom.

• Electrons

• Neutrons

• Protons

• Isotopes

Tags

NGSS.MS-PS1-1

A row of elements in the Periodic Table whose properties change gradually and predictably:

• Periods

• Groups/Families

• Cousins

• Metals

Columns in the Periodic Table are called

• Periods - because they are very similar

• Groups/Families because they share similar chemical properties

• Cousins because they share similar chemical properties

• Metals because they are magnetic

There are _________ unique elements arranged in the Periodic Table.

• 181

• 81

• 118

• 100