The Atom and Periodic Table 2017

Question 1

The number of protons in an atom has

Accepted Answer

Atomic Number

Question 2

Arrange the following particles in order from the largest to smallest

Accepted Answer

Atom, Nucleus, Neutron, Protron, Electron

Question 3

An atom is comprised of mostly this (Best Answer)

Accepted Answer

empty space

Question 4

Who is credited with creating the concept of an atom?

Accepted Answer

Democritus

Question 5

The sum of the number of protons and neutrons the atom has

Accepted Answer

Atomic Mass

Question 6

In order for an atom to be neutral in charge, the number of protons should equal the number of:

Accepted Answer

Electrons

Question 7

Everything is made of atoms.

Accepted Answer

True

Question 8

Who is credited with making the first "workable" Periodic Table?

Accepted Answer

Mendeleev

Question 9

The smallest particle in an atom

Accepted Answer

electrons

Question 10

What is the name of Number #3

Accepted Answer

Atomic Symbol

Question 11

What is Number #4 pointing to?

Accepted Answer

neutron

Question 12

A group of two or more atoms bonded together would form a(n):

Accepted Answer

Molecule

Question 13

Salt has a name of sodium chloride (NaCl). What 2 atoms are bonded in this substance?

Accepted Answer

1 atom of Sodium and 1 atom of Chlorine bonded together.

Question 14

Choice below that is the smallest part of an element that can exist alone or in combination:

Accepted Answer

Atom

Question 15

Atoms of the same element that contain different numbers of neutrons

Accepted Answer

isotopes

Question 16

What is Number #2 pointing to?

Accepted Answer

electron

Question 17

Different atoms have different numbers of electrons.

Accepted Answer

TRUE

Question 18

What is the name of Number #2

Accepted Answer

Atomic Number

Question 19

Mendeleev created the first periodic table by arranging elements in order of

Accepted Answer

increasing atomic mass.

Question 20

What is Number #3 pointing to?

Accepted Answer

nucleus

Question 21

What choice below best explains why two Hydrogen atoms below would bond together?

Accepted Answer

Both hydrogen atoms want to fill their first energy level

Question 22

Where electrons hang out

Accepted Answer

electron cloud

Question 23

What is the name of Number #1

Accepted Answer

Atomic Name

Question 24

What is the name of Number #4

Accepted Answer

Atomic Mass or Avg Atomic Mass

Question 25

What is Number #1 pointing to?

Accepted Answer

proton

Question 26

What prediction did Mendeleev make that came true less than 20 years later?

Accepted Answer

3 new elements would be found, and described the properties.

The Atom and Periodic Table 2017

Questions 26

The Atom and Periodic Table 2017

Questions 26