Periodic Table-7 Flashcards

1

How did Mendelev organize the first periodic table?

By metals and nonmetals
By the number of atomic mass
By the atomic number
By the number of protons

2

Aluminum is from which family?

Carbon
Alkali
Noble
Boron

3

What charge is an electron?

both positive and negative
negative
positive
neutral

4

Why did the Periodic table change?

it didn't leave room for unknown elements
the atomic numbers changed
they wanted to organize it differently
they wanted a different shape

5

Groups on the Periodic Table represent the ________?

columns
staircase
rows
first column

6

The smallest whole piece of matter is called __________?

electron
proton
atom
nucleus

7

How many electrons are in the outer shell of Helium?

8
2
7
3

8

What charge is a neutron?

positive
negative
neutral
atomic number

9

_____________ are good conductors of heat and electricity.

Noble gases
Oxygen Family
Halogens
Transition metals

10

Elements in the same group have the same number of _______ ?

Protons
atomic orbitals
Neutrons
Electrons in the outer shell

11

In which family is Magnesium found?

Alkaline Earth Metals
Boron Family
Alkali metals
Halogen Family

12

Elements in the same period have the same number of _______?

atomic orbitals
Protons
Neutrons
Electrons in the outer shell

13

Which way is our current periodic table NOT organized?

by the atomic number
metals, nonmetals and metalloids
by the number of protons
by groups and periods

14

What charge is a proton?

nothing
neutral
negative
positive

15

What does the atomic number of an element mean?

the number of protons and electrons
the number of protons
the number of neutrons
the number of electrons

Periodic Table-7

Questions 15

Periodic Table-7

Questions 15