Atomic Structure and the Periodic Table

Question 1

What is the charge for the Silver ion?

Accepted Answer

+1

Question 2

What do the spectral lines from a hydrogen atom prove?

Accepted Answer

energy levels for electrons

Question 3

What pattern is pictured with the numbers here?

Accepted Answer

# Valence Electrons

Question 4

Making up 28%, what metalloid is most abundant in Earth's crust?

Accepted Answer

Silicon

Question 5

Which are softer with lower mp&bp than transition metals?

Accepted Answer

poor metals

Question 6

the distance between the nucleus and a valence electron

Accepted Answer

Ion Radius

Question 7

Which group has 7 valence electrons?

Accepted Answer

Halogens

Question 8

What are the 3 broad classes of elements?

Accepted Answer

Metals, Nonmetals, Metalloids

Question 9

What block is Potassium in?

Accepted Answer

s

Question 10

The electron configuration for an ion will be:

Accepted Answer

the same as a noble gas

Question 11

Which family of nonmetals are inert and glow when electrified?

Accepted Answer

Noble Gases

Question 12

Who wasthe first person to suggest the idea of atoms, in the fourth century B. C.?

Accepted Answer

Democritus

Question 13

What does the number 24 represent?

Accepted Answer

Mass of Isotope

Question 14

Half the distance between centers of two atoms of the same element that are touching

Accepted Answer

Atomic Radius

Question 15

the energy needed to pull electrons off atoms is called ________ energy.

Accepted Answer

Ionization

Question 16

How do the isotopes hydrogen-1 and hydrogen-2 differ?

Accepted Answer

# Neutrons

Question 17

What element is: 1s2 2s2 2p6 3s2

Accepted Answer

Mg

Question 18

What is the electron configuration for this?

Accepted Answer

1s22s22p3

Question 19

(HOBr FINCl) H, N, O, F, Cl, Br and I are known as the ____ elements.

Accepted Answer

Diatomic

Question 20

What atom is this?

Accepted Answer

Oxygen

Question 21

If an atom gains 3 electrons, the ion charge is:

Accepted Answer

-3

Question 22

Which must occur for photoemission of light from an excited hydrogen atom?

Accepted Answer

electron loses energy

Question 23

Which element is in the p block?

Accepted Answer

Oxygen

Question 24

The smallest particle that retains the properties of the element is called the:

Accepted Answer

Atom

Question 25

Approximately how many elements exist?

Accepted Answer

100

Question 26

What element is the only liquid nonmetal?

Accepted Answer

Bromine

Question 27

What element is in Group 2, Period 3?

Accepted Answer

Mg

Question 28

How many neutrons?

Accepted Answer

13

Question 29

Who arranged the Periodic Table according to increasing atomic number?

Accepted Answer

Moseley

Question 30

Who arranged the periodic table according to increasing atomic mass?

Accepted Answer

Mendeleev

Question 31

The Group A elements are called:

Accepted Answer

Representative

Question 32

What element is the basis for all life?

Accepted Answer

Carbon

Question 33

Which particle and charge is correct?

Accepted Answer

Neutrons-Neutral

Question 34

In order for atoms to eject photons, their electrons must be excited by...

Accepted Answer

A minimum amount of energy

Question 35

1+, 2+, 3+, 4+, 3-, 2-, 1-, 0 is the pattern for the _________.

Accepted Answer

Ion's Charges

Atomic Structure and the Periodic Table

Questions 35

Atomic Structure and the Periodic Table

Questions 35